72017006056 has 32 divisors (see below), whose sum is σ = 135963878400. Its totient is φ = 35760437440.

The previous prime is 72017006051. The next prime is 72017006119. The reversal of 72017006056 is 65060071027.

It is a super-2 number, since 2×72017006056² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72017006051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232265 + ... + 1289383.

It is an arithmetic number, because the mean of its divisors is an integer number (4248871200).

Almost surely, 2^72017006056 is an apocalyptic number.

It is an amenable number.

72017006056 is a deficient number, since it is larger than the sum of its proper divisors (63946872344).

72017006056 is a wasteful number, since it uses less digits than its factorization.

72017006056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58209 (or 58205 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 72017006056 in words is "seventy-two billion, seventeen million, six thousand, fifty-six".