Albumistanumerophobia Fear of Number lists and list of number phobias .
Anthrodosophobia Fear of any animated character shaped like the number two .
Apeirophobia Fear of infinity.
Aperiophobia Fear of infinity .
Arithmophobia Fear of numbers.
Cardinophobia Fear of cardinal numbers .
Compustitusnumerophobia Fear of composite numbers
Decadisophobia Fear of decimals
Defterophobia Fear of things that are second .
Dekatotritophobia Fear of thirteenths .
Dodekatophobia Fear of twelfths .
Ducentosoquinquagintaphobia Fear of 255 .
Ektophobia Fear of sixths .
Enatophobia Fear of ninths .
Endekatophobia Fear of elevenths .
Enneaidekaphobia Fear of 19 .
Evdomophobia Fear of sevenths .
Googolphobia Fear of the number googol .
Hekatenophobia Fear of 101 .
Hekkaidekaphobia Fear of 16 .
Heptaidekaphobia Fear of 17 .
Illionophobia Fear of numbers ending in -illion .
Imparnumerophobia Fear of odd numbers
Neganumerophobia Fear of negative numbers
Nonagintaphobia Fear of 90 .
Octaidekaphobia Fear of 18 .
Octogintaphobia Fear of 80 .
Octokontaheptaphobia Fear of 87 .
Ogdoophobia Fear of eighths .
Omalonumerophobia Fear of even numbers
Ordinophobia Fear of ordinal numbers .
Paranumerophobia Fear of irrational numbers
Pemptophobia Fear of fifths .
Petaphobia Fear of 1,000,000,000,000,000 .
Primonumerophobia Fear of prime numbers
Primotitusheteronumerophobia Fear of prime numbers .
Protistophobia Fear of firsts .
Quadragintaphobia Fear of 40 .
Quattuordecimphobia Fear of 14 .
Quindecimphobia Fear of 15 .