I'm really good with numbers?

Yeah, so I'm really good at being able to memorize numbers.. Mainly credit cards, debit cards, EBT cards.. Things like that.. I actually mess with people that come in where I work and tell me I have to type in their EBT cards cuz I'll tell them I'll memorize their number and when they laugh, I start telling them what the number on their card is... Lol, they freak out and I have to reassure them that I can't do anything without their PIN =P N tell them that I'm only showing them cuz someone else might really try to take advantage of that =/. So anyway, what would be a good career goal for me? I'm currently in my freshman year of college as an undecided major.. Any other possible careers that are legal?