72116520716 has 12 divisors (see below), whose sum is σ = 126207605832. Its totient is φ = 36057204768.

The previous prime is 72116520701. The next prime is 72116520719. The reversal of 72116520716 is 61702561127.

It is a self number, because there is not a number n which added to its sum of digits gives 72116520716.

It is not an unprimeable number, because it can be changed into a prime (72116520719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98690 + ... + 392393.

It is an arithmetic number, because the mean of its divisors is an integer number (10517300486).

Almost surely, 2^72116520716 is an apocalyptic number.

It is an amenable number.

72116520716 is a deficient number, since it is larger than the sum of its proper divisors (54091085116).

72116520716 is a wasteful number, since it uses less digits than its factorization.

72116520716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527800 (or 527798 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 72116520716 in words is "seventy-two billion, one hundred sixteen million, five hundred twenty thousand, seven hundred sixteen".