72662556065 has 32 divisors (see below), whose sum is σ = 97480091520. Its totient is φ = 51536396800.

The previous prime is 72662556059. The next prime is 72662556067. The reversal of 72662556065 is 56065526627.

It is not a de Polignac number, because 72662556065 - 2¹⁴ = 72662539681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72662556067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8016506 + ... + 8025564.

It is an arithmetic number, because the mean of its divisors is an integer number (3046252860).

Almost surely, 2^72662556065 is an apocalyptic number.

It is an amenable number.

72662556065 is a deficient number, since it is larger than the sum of its proper divisors (24817535455).

72662556065 is a wasteful number, since it uses less digits than its factorization.

72662556065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12673.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 72662556065 in words is "seventy-two billion, six hundred sixty-two million, five hundred fifty-six thousand, sixty-five".