decemmillephobia
Decemmillephobia is the fear of the number 10,000.
Fear of 10,000
emphobia
Emphobia is an irrational fear of the number 648.
Fear of the number 648
endekatophobia
Endekatophobia is the fear of the number eleven.
Fear of elevenths
enenekontenneaphobia
Fear of the number 99.
Fear of 99
hebdomekontahenophobia
Hebdomekontahenophobia is the fear of the number 71.
Fear of 71
hexaphobia
Fear of the number 6.
Fear of 6
hexekontenneaphobia
Hexekontenneaphobia is the fear of the number 69.
Fear of 69
quindecimphobia
Fear of the number 15, often associated with superstitions or negative beliefs attached to this specific number.
Fear of 15
quinquagintaphobia
Fear of the number 50.
Fear of 50
sexticentumphobia
Fear of the number 600.
Fear of 600
tetraphobia
Tetraphobia is the fear or aversion to the number 4.
Fear of 4
triakontenneaphobia
Triakontenneaphobia is the fear of the number 39.
Fear of 39
vigintiunusphobia
Fear of the number 21.
Fear of 21