72057055670 has 16 divisors (see below), whose sum is σ = 130649437728. Its totient is φ = 28612436160.

The previous prime is 72057055663. The next prime is 72057055709. The reversal of 72057055670 is 7655075027.

It is a happy number.

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, 26296826 + ... + 26299565.

It is an arithmetic number, because the mean of its divisors is an integer number (8165589858).

Almost surely, 2^72057055670 is an apocalyptic number.

72057055670 is a deficient number, since it is larger than the sum of its proper divisors (58592382058).

72057055670 is a wasteful number, since it uses less digits than its factorization.

72057055670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52596535.

The product of its (nonzero) digits is 514500, while the sum is 44.

The spelling of 72057055670 in words is "seventy-two billion, fifty-seven million, fifty-five thousand, six hundred seventy".