72172264600 has 24 divisors (see below), whose sum is σ = 167800515660. Its totient is φ = 28868905760.

The previous prime is 72172264553. The next prime is 72172264613. The reversal of 72172264600 is 646227127.

It is a self number, because there is not a number n which added to its sum of digits gives 72172264600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180430462 + ... + 180430861.

Almost surely, 2^72172264600 is an apocalyptic number.

It is an amenable number.

72172264600 is an abundant number, since it is smaller than the sum of its proper divisors (95628251060).

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

72172264600 is a wasteful number, since it uses less digits than its factorization.

72172264600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360861339 (or 360861330 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 72172264600 in words is "seventy-two billion, one hundred seventy-two million, two hundred sixty-four thousand, six hundred".