11562012056172 has 12 divisors (see below), whose sum is σ = 26978028131096. Its totient is φ = 3854004018720.

The previous prime is 11562012056167. The next prime is 11562012056191. The reversal of 11562012056172 is 27165021026511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11562012056172.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481750502329 + ... + 481750502352.

Almost surely, 2^{11562012056172} is an apocalyptic number.

11562012056172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11562012056172 is an abundant number, since it is smaller than the sum of its proper divisors (15416016074924).

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

11562012056172 is a wasteful number, since it uses less digits than its factorization.

11562012056172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963501004688 (or 963501004686 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 11562012056172 in words is "eleven trillion, five hundred sixty-two billion, twelve million, fifty-six thousand, one hundred seventy-two".