72760215660 has 48 divisors (see below), whose sum is σ = 222249388032. Its totient is φ = 17638840000.

The previous prime is 72760215641. The next prime is 72760215667. The reversal of 72760215660 is 6651206727.

It is not an unprimeable number, because it can be changed into a prime (72760215667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55120716 + ... + 55122035.

It is an arithmetic number, because the mean of its divisors is an integer number (4630195584).

Almost surely, 2^72760215660 is an apocalyptic number.

It is an amenable number.

72760215660 is an abundant number, since it is smaller than the sum of its proper divisors (149489172372).

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

72760215660 is a wasteful number, since it uses less digits than its factorization.

72760215660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110242774 (or 110242772 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

It can be divided in two parts, 72760 and 215660, that added together give a triangular number (288420 = T₇₅₉).

The spelling of 72760215660 in words is "seventy-two billion, seven hundred sixty million, two hundred fifteen thousand, six hundred sixty".