72146556807180 has 48 divisors (see below), whose sum is σ = 202020293668704. Its totient is φ = 19238135662080.

The previous prime is 72146556807173. The next prime is 72146556807223. The reversal of 72146556807180 is 8170865564127.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 28336657 + ... + 30777576.

It is an arithmetic number, because the mean of its divisors is an integer number (4208756118098).

Almost surely, 2^{72146556807180} is an apocalyptic number.

It is an amenable number.

72146556807180 is an abundant number, since it is smaller than the sum of its proper divisors (129873736861524).

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

72146556807180 is a wasteful number, since it uses less digits than its factorization.

72146556807180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59134586 (or 59134584 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 72146556807180 in words is "seventy-two trillion, one hundred forty-six billion, five hundred fifty-six million, eight hundred seven thousand, one hundred eighty".