79665696 has 72 divisors (see below), whose sum is σ = 247154544. Its totient is φ = 24140160.

The previous prime is 79665679. The next prime is 79665701. The reversal of 79665696 is 69656697.

79665696 is a `hidden beast` number, since 79 + 6 + 6 + 569 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9406 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (3432702).

Almost surely, 2^79665696 is an apocalyptic number.

It is an amenable number.

79665696 is an abundant number, since it is smaller than the sum of its proper divisors (167488848).

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

79665696 is a wasteful number, since it uses less digits than its factorization.

79665696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25174 (or 25163 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 79665696 is about 8925.5641838485. The cubic root of 79665696 is about 430.2859032471.

The spelling of 79665696 in words is "seventy-nine million, six hundred sixty-five thousand, six hundred ninety-six".