History Main / NumberOfTheBeast

** The Treehouse of Horror part of one episode had Lisa and Bart going through the occult section of a library. Dewey Decimal System designation? 666. (For the curious, the [[http://en.wikipedia.org/wiki/Outline_of_Dewey_Decimal_classes actual designation]] would be 130 or 133. 666 is assigned to "ceramic and allied technologies".)
** In the opening of another Treehouse of Horror episode, a cheerful Fox Censor tells the viewers that the episode is rated TV-G, only for the ratings box to sprout an arm holding a knife and stab him, and turn to TV-PG. The stabbing continued, going to TV-14, TV-MA, TV-21, and finally, TV-666. (Those last two aren't real ratings, of course. The ''actual'' rating for the episode was TV-PG.)
** The 30th Treehouse of Horror is the 666th episode of the series, and opens with a parody of ''Film/TheOmen''.

* In ''LightNovel/ACertainMagicalIndex'', Creator/AleisterCrowley is eventually revealed to have used the CodeName [=Beast666=].
* With the premise of ''LightNovel/HighSchoolDXD'', this trope was inevitable. Called "Trihexa", it is considered to be the most powerful monster of the series that other mythologies, upon seeing it, claim that even they can't destroy it.

* Issue 6 of ''[[ComicBook/TheBatmanAdventures Batman Adventures]]'' has Batman interrogate Eel O'Brian into giving away Firefly's hideout. The address Eel gives is Club Inferno, which is located on 666 Dixon Street.

* ''Anime/DarlingInTheFranxx'': Zorome's code number is 666, being the most rudest member of the team.

* This is used as an address in ''Film/SilentNightDeadlyNightPart2'' and ''Film/{{Inside}}''.

* ''WesternAnimation/TeenTitans'': "Birthmark" gives us a more subtle example. It is Raven's DangerousSixteenthBirthday, where she is concerned about the prophecy concerning her demonic father, and we open with her laying on her bed staring at a clock, saying, "6 p.m. Just six more hours and it will all be over. Six more hours." She probably didn't notice that she said the number 6 thrice.

* ''Series/{{Supernatural}}'': There was a rather reviled Season 1 episode called "Route 666", and then there were the 66 out of 600 possible seals that needed to be opened in order to set Lucifer free from his prison. When Dean wakes up in a post-Apocalypse BadFuture where Lucifer is winning, there's a movie theatre with NOW SHOWING: ROUTE 666. When Crowley (the King of Hell) rings up our heroes in "Clip Show", the number displayed is 666.

* The FinalBattle of ''Webcomic/{{Homestuck}}'' takes place across the entirety of Act 6 Act 6 Act 6, which concludes Act 6 as a whole. The Flash for the battle, [S] Collide, is exactly 18(6+6+6)minutes long.

* The serial killer from ''Film/{{Seed}}'' was captured after killing this many people.

* "Number of the Beast" by Music/IronMaiden, which even begins with the above quote from Revelations. The songwriter, LeadBassist Steve Harris, [[http://images.rapgenius.com/e34754151fd45601bfc959ed72d18d3f.333x500x1.jpg has also worn a]] FunTShirt reading "666 The Number of the Beast, 664 The Bloke Next Door".

Oddly enough, the Beast of Revelation itself [[OneSceneWonder is rarely ever mentioned]] anymore. (In fact, there were two of them in the Book of Revelation, the Number describing the second.) The Number has totally eclipsed the being it represented.

* Played with in the 1999 film ''Film/EndOfDays''. Apparently, people who saw the number of the beast in their dreams/visions didn't realize it was shown upside down, so the number of the beast was 999 instead of 666. The Devil will then try to return on the last day of the year, for every year ending in 999 (999, 1999, 2999, etc). [[CriticalResearchFailure except they used Roman Numerals back then.]]

* Both used and subverted in the ''Wiki/SCPFoundation''. [[http://scp-wiki.wikidot.com/scp-616 SCP-616]] is a hellish door with a strong BrownNote effect and vaguely specified "bad things" happening when it opens, but [[http://scp-wiki.wikidot.com/scp-666 SCP-666]] seems slightly more benign. There's also [[http://www.scp-wiki.net/scp-666-and-a-half-j SCP-666½-J]], called the Roaring Flames of Hell, but it's just a dinner entrée; it sets off apocalypses (yes, multiple) [[LethalChef in one's intestines]].

Compare with its Asian counterparts, [[Mystical108 108]] and [[FourIsDeath 4]]. For the Creator/RobertAHeinlein novel, see ''Literature/TheNumberOfTheBeast''. Not to be confused with [[FiveFiveFive 555]], which is about fake phone numbers, though as stated above, sometimes an evil-associated fake number can make them overlap. See also MarkOfTheBeast, when association with dark powers gives someone a physical marking.

* In the beginning of the 25th chapter of ''Fanfic/TheUltimateEvil'', [[spoiler:Valerie Payne is [[DemonicPossession possessed by Shendu]]]] in a Hongkongese hotel room that's numbered 666.

* In the epilogue of Series/KamenRiderRevice, Orteca is apprehended by Weekend and sentenced to 666 years in prison.

* ''Series/TheGlassHouse'' reported the discovery that 616 might actually be the number of the beast, and noted that, by international dialling, Canberra's former area code was + 61-6.

** In ''ComicBook/ChaosWar: Chaos King'', Thrann's journal in the prologue starts with 66.6.01, with the first entries being about the creation of the universe and Thrann's arrival in [[MarySueTopia Zenn-La]]. Entry 66.6.06 turns it into an ApocalypticLog.

* "The House That Dripped Chocolate", one of ''Series/GoodEats'''s Halloween episodes, uses the 216 version. It's the number of layers in the pistachio Butterfin--[[BrandX you know what]] [[RunningGag I mean]].

* "The House That Dripped Chocolate", one of ''Series/GoodEats'''s Halloween episodes, uses the 216 version. It's the number of layers in the pistachio Butterfin--[[BrandX you know what]] [[RunningGag I mean]].

* One episode of ''Series/CriminalMinds'' had a Satanist whose name was '''F'''loyd '''F'''eylin '''F'''errell. F is the sixth letter of the alphabet.

* "The House That Dripped Chocolate", the most recent ''Series/GoodEats'' Halloween episode, uses the 216 version. It's the number of layers in the pistachio Butterfin--[[BrandX you know what]] [[RunningGag I mean]].

If you're looking for the SignatureSong of Music/IronMaiden which has the same name, see their Trope page.

* Music/{{Genesis}}' song "[[Music/SuppersReady Supper's Ready]]" has the line "Six six six is no longer alone". Since the segment it's from is a musical adaptation of Revelation, this probably isn't terribly surprising.

* In an unusual example for a religious group, the ChristianRock band Music/{{Red}} released their debut album, ''End of Silence'', on 6/6/06.

* In a 1998 promo, Wrestling/StoneColdSteveAustin declares that if he's going to face Wrestling/TheUndertaker and Wrestling/{{Kane}} in a triple threat match for his [=WWF=] title at Breakdown, [[CatchPhrase Austin 3:16]] won't show up, but Austin 666 will instead.

** Furthermore in the episode "Hef in a Handbasket", the number to apply for Peaches' game show is "555 and THEN A BUNCH OF SIXES," the show is broadcast on channel 66, and Heffer needs to score 666 points to "win."

In Mandarin UsefulNotes/{{Chinese|Language}}, 666 sounds like the phrase that roughly translates as "everything going smoothly", so [[ValuesDissonance the number is considered lucky in China, especially for commercial undertakings]].

* Music/{{Ghost}}'s song "Death Knell" both uses this straight and plays with it. The first chorus starts with "Six-six-six / Invoke the king of hell", while the second chorus starts with "Sex, sex, sex / Receive the beast of evil", referring to the song's theme of the conception of the Antichrist.