Dekapentophobia

Dekapentophobia is the fear of the number 15

This phobia may be linked to Pentaphobia since 15 is a multiple of 5.

Some say that the fear of 15 is triggered due to The Devil being tarot card number 15 in the Major Arcana of modern tarot decks. For this reason, dekapentophobia is associated with the fear of Satan (satanophobia) and the fear of demons (demonophobia).