72155612116130 has 32 divisors (see below), whose sum is σ = 130728589533504. Its totient is φ = 28673751727296.

The previous prime is 72155612116103. The next prime is 72155612116177. The reversal of 72155612116130 is 3161121655127.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5947289 + ... + 13404531.

It is an arithmetic number, because the mean of its divisors is an integer number (4085268422922).

Almost surely, 2^{72155612116130} is an apocalyptic number.

72155612116130 is a deficient number, since it is larger than the sum of its proper divisors (58572977417374).

72155612116130 is a wasteful number, since it uses less digits than its factorization.

72155612116130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463570.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 72155612116130 in words is "seventy-two trillion, one hundred fifty-five billion, six hundred twelve million, one hundred sixteen thousand, one hundred thirty".