72548258664 has 32 divisors (see below), whose sum is σ = 207280739520. Its totient is φ = 20728073856.

The previous prime is 72548258647. The next prime is 72548258687. The reversal of 72548258664 is 46685284527.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215917269 + ... + 215917604.

It is an arithmetic number, because the mean of its divisors is an integer number (6477523110).

Almost surely, 2^72548258664 is an apocalyptic number.

It is an amenable number.

72548258664 is an abundant number, since it is smaller than the sum of its proper divisors (134732480856).

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

72548258664 is a wasteful number, since it uses less digits than its factorization.

72548258664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431834889 (or 431834885 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 72548258664 in words is "seventy-two billion, five hundred forty-eight million, two hundred fifty-eight thousand, six hundred sixty-four".