The Honduran telephone company once tried to change the area code for the town Progreso to 666. They got so much blowback that they relented and assigned a different code. One of the protesting voices was the mother of the head of the phone company.
Nothing wrong with the number when used as just another ordinal, and we know from Revelation 13 that the number of the Beast is “the number of a man”, and that no one might buy or sell without it.
Rev 13:17 And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.
18 Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six.
There is a company that is marketing an embedded chip. The word for “mark” in the verse is not so much superficial, as it is a word that carries a meaning more like a “groove”, in most Textus Receptus copies of the Koine Greek New Testament. That according to the best Koine Greek scholars. Thus the KJB wording is right and almost all modern translations wrong, as usual: “IN the right hand”, “IN the forehead” (my caps) is the correct rendering of the verse.
Song, “Watch Out for 666”:
http://www.nubeat.org/Audio/1HM/ATS/12%20Watch%20Out%20for%20666.mp3
Lyrics:
http://www.nubeat.org/Audio/1HM/ATS/LYRwatchoutfor666.html
There is a lot of inspiring music here:
http://www.nubeat.org/