72165446504 has 16 divisors (see below), whose sum is σ = 138189153600. Its totient is φ = 35315005552.

The previous prime is 72165446497. The next prime is 72165446609. The reversal of 72165446504 is 40564456127.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 95964314 + ... + 95965065.

It is an arithmetic number, because the mean of its divisors is an integer number (8636822100).

Almost surely, 2^72165446504 is an apocalyptic number.

It is an amenable number.

72165446504 is a deficient number, since it is larger than the sum of its proper divisors (66023707096).

72165446504 is a wasteful number, since it uses less digits than its factorization.

72165446504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191929432 (or 191929428 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 44.

The spelling of 72165446504 in words is "seventy-two billion, one hundred sixty-five million, four hundred forty-six thousand, five hundred four".