72666800 has 30 divisors (see below), whose sum is σ = 174582948. Its totient is φ = 29066560.

The previous prime is 72666767. The next prime is 72666827. The reversal of 72666800 is 866627.

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, 90434 + ... + 91233.

Almost surely, 2^72666800 is an apocalyptic number.

It is an amenable number.

72666800 is an abundant number, since it is smaller than the sum of its proper divisors (101916148).

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

72666800 is a wasteful number, since it uses less digits than its factorization.

72666800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181685 (or 181674 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 72666800 is about 8524.4823889782. The cubic root of 72666800 is about 417.2970794880.

The spelling of 72666800 in words is "seventy-two million, six hundred sixty-six thousand, eight hundred".