72153616008 has 16 divisors (see below), whose sum is σ = 180384040080. Its totient is φ = 24051205328.

The previous prime is 72153615971. The next prime is 72153616021. The reversal of 72153616008 is 80061635127.

It is a super-2 number, since 2×72153616008² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503200310 + ... + 1503200357.

It is an arithmetic number, because the mean of its divisors is an integer number (11274002505).

Almost surely, 2^72153616008 is an apocalyptic number.

It is an amenable number.

72153616008 is an abundant number, since it is smaller than the sum of its proper divisors (108230424072).

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

72153616008 is a wasteful number, since it uses less digits than its factorization.

72153616008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3006400676 (or 3006400672 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 72153616008 in words is "seventy-two billion, one hundred fifty-three million, six hundred sixteen thousand, eight".