72612564651633 has 16 divisors (see below), whose sum is σ = 102595676063616. Its totient is φ = 45523571508480.

The previous prime is 72612564651611. The next prime is 72612564651673. The reversal of 72612564651633 is 33615646521627.

It is not a de Polignac number, because 72612564651633 - 2²⁴ = 72612547874417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72612564651673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 582020938 + ... + 582145683.

It is an arithmetic number, because the mean of its divisors is an integer number (6412229753976).

Almost surely, 2^{72612564651633} is an apocalyptic number.

It is an amenable number.

72612564651633 is a deficient number, since it is larger than the sum of its proper divisors (29983111411983).

72612564651633 is a wasteful number, since it uses less digits than its factorization.

72612564651633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164167864.

The product of its digits is 32659200, while the sum is 57.

The spelling of 72612564651633 in words is "seventy-two trillion, six hundred twelve billion, five hundred sixty-four million, six hundred fifty-one thousand, six hundred thirty-three".