72340017056 has 48 divisors (see below), whose sum is σ = 144884376000. Its totient is φ = 35544419328.

The previous prime is 72340017041. The next prime is 72340017067. The reversal of 72340017056 is 65071004327.

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, 7639781 + ... + 7649243.

It is an arithmetic number, because the mean of its divisors is an integer number (3018424500).

Almost surely, 2^72340017056 is an apocalyptic number.

It is an amenable number.

72340017056 is an abundant number, since it is smaller than the sum of its proper divisors (72544358944).

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

72340017056 is a wasteful number, since it uses less digits than its factorization.

72340017056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13581 (or 13573 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The spelling of 72340017056 in words is "seventy-two billion, three hundred forty million, seventeen thousand, fifty-six".