72666364 has 24 divisors (see below), whose sum is σ = 136170720. Its totient is φ = 33808896.

The previous prime is 72666359. The next prime is 72666383. The reversal of 72666364 is 46366627.

It is a congruent number.

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, 49 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (5673780).

Almost surely, 2^72666364 is an apocalyptic number.

It is an amenable number.

72666364 is a deficient number, since it is larger than the sum of its proper divisors (63504356).

72666364 is a wasteful number, since it uses less digits than its factorization.

72666364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12117 (or 12115 counting only the distinct ones).

The product of its digits is 217728, while the sum is 40.

The square root of 72666364 is about 8524.4568155396. The cubic root of 72666364 is about 417.2962448937.

The spelling of 72666364 in words is "seventy-two million, six hundred sixty-six thousand, three hundred sixty-four".