(Stargzer decides to leave the pronunciation of this behemoth to the experts.)
So, here I was, sorta half-listening to a program about the Anti-Christ on the History Channel, when I decided to do a little Wikipedia wandering to see what it had to say about The Number of the Beast, 666. Among other things, I ran across this word:
Fear of the number 666.
A related word is Hexaphobia: fear of the number 6, either by itself or in a combination of 6's.
(Stargzer does not fear the number 6: he is #66 on the "Great Minds" plaque at the Rams Head Roadhouse, "forever immortalizing his commitment to fine beer.")