12972104556 has 24 divisors (see below), whose sum is σ = 30273351024. Its totient is φ = 4323305280.

The previous prime is 12972104549. The next prime is 12972104617. The reversal of 12972104556 is 65540127921.

It is a super-2 number, since 2×12972104556² (a number of 21 digits) contains 22 as substring.

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, 14535 + ... + 161726.

It is an arithmetic number, because the mean of its divisors is an integer number (1261389626).

Almost surely, 2^12972104556 is an apocalyptic number.

It is an amenable number.

12972104556 is an abundant number, since it is smaller than the sum of its proper divisors (17301246468).

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

12972104556 is a wasteful number, since it uses less digits than its factorization.

12972104556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182401 (or 182399 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 12972104556 in words is "twelve billion, nine hundred seventy-two million, one hundred four thousand, five hundred fifty-six".