7216931616 has 24 divisors (see below), whose sum is σ = 18944445744. Its totient is φ = 2405643840.

The previous prime is 7216931597. The next prime is 7216931653. The reversal of 7216931616 is 6161396127.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37588090 + ... + 37588281.

It is an arithmetic number, because the mean of its divisors is an integer number (789351906).

Almost surely, 2^7216931616 is an apocalyptic number.

It is an amenable number.

7216931616 is an abundant number, since it is smaller than the sum of its proper divisors (11727514128).

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

7216931616 is a wasteful number, since it uses less digits than its factorization.

7216931616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75176384 (or 75176376 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 7216931616 is about 84952.5256599237. The cubic root of 7216931616 is about 1932.4912227348.

The spelling of 7216931616 in words is "seven billion, two hundred sixteen million, nine hundred thirty-one thousand, six hundred sixteen".