11572620164 has 12 divisors (see below), whose sum is σ = 23145240384. Its totient is φ = 4959694344.

The previous prime is 11572620161. The next prime is 11572620173. The reversal of 11572620164 is 46102627511.

11572620164 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11572620161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206653904 + ... + 206653959.

It is an arithmetic number, because the mean of its divisors is an integer number (1928770032).

Almost surely, 2^11572620164 is an apocalyptic number.

11572620164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11572620164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11572620164 is a wasteful number, since it uses less digits than its factorization.

11572620164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413307874 (or 413307872 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 11572620164 in words is "eleven billion, five hundred seventy-two million, six hundred twenty thousand, one hundred sixty-four".