2. Hexakosioihexekontahexaphobia
Hexakosioihexekontahexaphobia is the fear of number of 666, which is commonly believed in Christianity tradition as the Number of the Beast. Outside the Christian faith, the number of 666 has also been popularized in media. People with hexakosioihexekontahexaphobia have irrational fear that the number has an evil power and anything with the number of 666 in it could come from the Satan himself. People with hexakosioihexekontahexaphobia may also avoid other forms of 666, such as the fraction 2/3 (0.666) or any random number with 666 in it.