72708054156 has 36 divisors (see below), whose sum is σ = 183968161104. Its totient is φ = 24212498400.

The previous prime is 72708054127. The next prime is 72708054179. The reversal of 72708054156 is 65145080727.

72708054156 is a `hidden beast` number, since 7 + 27 + 0 + 80 + 541 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×72708054156² (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 11 ways as a sum of consecutive naturals, for example, 942355 + ... + 1016586.

Almost surely, 2^72708054156 is an apocalyptic number.

It is an amenable number.

72708054156 is an abundant number, since it is smaller than the sum of its proper divisors (111260106948).

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

72708054156 is a wasteful number, since it uses less digits than its factorization.

72708054156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959982 (or 1959977 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 72708054156 in words is "seventy-two billion, seven hundred eight million, fifty-four thousand, one hundred fifty-six".