8116568464 has 45 divisors (see below), whose sum is σ = 15954638529. Its totient is φ = 4000084800.

The previous prime is 8116568461. The next prime is 8116568477. The reversal of 8116568464 is 4648656118.

The square root of 8116568464 is 90092.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7798302864 + 318265600 = 88308^2 + 17840^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8116568461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36397057 + ... + 36397279.

Almost surely, 2^8116568464 is an apocalyptic number.

8116568464 is the 90092-nd square number.

It is an amenable number.

8116568464 is a deficient number, since it is larger than the sum of its proper divisors (7838070065).

8116568464 is an equidigital number, since it uses as much as digits as its factorization.

8116568464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 326 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The cubic root of 8116568464 is about 2009.6672356561.

Multiplying 8116568464 by its sum of digits (49), we get a square (397711854736 = 630644²).

The spelling of 8116568464 in words is "eight billion, one hundred sixteen million, five hundred sixty-eight thousand, four hundred sixty-four".