12511531160 has 32 divisors (see below), whose sum is σ = 29632575600. Its totient is φ = 4741211520.

The previous prime is 12511531139. The next prime is 12511531187. The reversal of 12511531160 is 6113511521.

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, 8230511 + ... + 8232030.

Almost surely, 2^12511531160 is an apocalyptic number.

12511531160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12511531160 is an abundant number, since it is smaller than the sum of its proper divisors (17121044440).

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

12511531160 is a wasteful number, since it uses less digits than its factorization.

12511531160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16462571 (or 16462567 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 12511531160 in words is "twelve billion, five hundred eleven million, five hundred thirty-one thousand, one hundred sixty".