12501563312 has 40 divisors (see below), whose sum is σ = 27967439136. Its totient is φ = 5302573056.

The previous prime is 12501563279. The next prime is 12501563357. The reversal of 12501563312 is 21336510521.

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, 564503 + ... + 586230.

Almost surely, 2^12501563312 is an apocalyptic number.

It is an amenable number.

12501563312 is an abundant number, since it is smaller than the sum of its proper divisors (15465875824).

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

12501563312 is a wasteful number, since it uses less digits than its factorization.

12501563312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150845 (or 1150839 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 12501563312 in words is "twelve billion, five hundred one million, five hundred sixty-three thousand, three hundred twelve".