12157070072 has 32 divisors (see below), whose sum is σ = 27183513600. Its totient is φ = 4983643104.

The previous prime is 12157070041. The next prime is 12157070089. The reversal of 12157070072 is 27007075121.

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, 4718072 + ... + 4720647.

It is an arithmetic number, because the mean of its divisors is an integer number (849484800).

Almost surely, 2^12157070072 is an apocalyptic number.

It is an amenable number.

12157070072 is an abundant number, since it is smaller than the sum of its proper divisors (15026443528).

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

12157070072 is a wasteful number, since it uses less digits than its factorization.

12157070072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438755 (or 9438751 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 32.

The spelling of 12157070072 in words is "twelve billion, one hundred fifty-seven million, seventy thousand, seventy-two".