12515505112 has 32 divisors (see below), whose sum is σ = 25604934480. Its totient is φ = 5687746560.

The previous prime is 12515505103. The next prime is 12515505127. The reversal of 12515505112 is 21150551521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576568 + ... + 597880.

Almost surely, 2^12515505112 is an apocalyptic number.

It is an amenable number.

12515505112 is an abundant number, since it is smaller than the sum of its proper divisors (13089429368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12515505112 is a wasteful number, since it uses less digits than its factorization.

12515505112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28003 (or 27999 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 28.

The spelling of 12515505112 in words is "twelve billion, five hundred fifteen million, five hundred five thousand, one hundred twelve".