72655575582976 has 27 divisors (see below), whose sum is σ = 145027612553971. Its totient is φ = 36327719600896.

The previous prime is 72655575582949. The next prime is 72655575583001. The reversal of 72655575582976 is 67928557555627.

The square root of 72655575582976 is 8523824.

It is a perfect power (a square), and thus also a powerful number.

72655575582976 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×72655575582976² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72655575582896 and 72655575582905.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 136114815 + ... + 136647553.

Almost surely, 2^{72655575582976} is an apocalyptic number.

72655575582976 is the 8523824-th square number.

It is an amenable number.

72655575582976 is a deficient number, since it is larger than the sum of its proper divisors (72372036970995).

72655575582976 is an frugal number, since it uses more digits than its factorization.

72655575582976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065494 (or 532741 counting only the distinct ones).

The product of its digits is 11113200000, while the sum is 79.

The spelling of 72655575582976 in words is "seventy-two trillion, six hundred fifty-five billion, five hundred seventy-five million, five hundred eighty-two thousand, nine hundred seventy-six".