72356665416 has 64 divisors (see below), whose sum is σ = 207100800000. Its totient is φ = 20636586048.

The previous prime is 72356665369. The next prime is 72356665427. The reversal of 72356665416 is 61456665327.

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, 287916 + ... + 477083.

It is an arithmetic number, because the mean of its divisors is an integer number (3235950000).

Almost surely, 2^72356665416 is an apocalyptic number.

It is an amenable number.

72356665416 is an abundant number, since it is smaller than the sum of its proper divisors (134744134584).

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

72356665416 is a wasteful number, since it uses less digits than its factorization.

72356665416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765578 (or 765574 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 72356665416 in words is "seventy-two billion, three hundred fifty-six million, six hundred sixty-five thousand, four hundred sixteen".