72365866955 has 16 divisors (see below), whose sum is σ = 89655481344. Its totient is φ = 56015699040.

The previous prime is 72365866939. The next prime is 72365866961. The reversal of 72365866955 is 55966856327.

It is not a de Polignac number, because 72365866955 - 2⁴ = 72365866939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959864 + ... + 1032506.

It is an arithmetic number, because the mean of its divisors is an integer number (5603467584).

Almost surely, 2^72365866955 is an apocalyptic number.

72365866955 is a deficient number, since it is larger than the sum of its proper divisors (17289614389).

72365866955 is a wasteful number, since it uses less digits than its factorization.

72365866955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79106.

The product of its digits is 81648000, while the sum is 62.

The spelling of 72365866955 in words is "seventy-two billion, three hundred sixty-five million, eight hundred sixty-six thousand, nine hundred fifty-five".