79664512 has 32 divisors (see below), whose sum is σ = 161714880. Its totient is φ = 39077376.

The previous prime is 79664491. The next prime is 79664521. The reversal of 79664512 is 21546697.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 913 + ... + 12655.

It is an arithmetic number, because the mean of its divisors is an integer number (5053590).

Almost surely, 2^79664512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79664512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80857440).

79664512 is an abundant number, since it is smaller than the sum of its proper divisors (82050368).

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

79664512 is a wasteful number, since it uses less digits than its factorization.

79664512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11810 (or 11798 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 79664512 is about 8925.4978572626. The cubic root of 79664512 is about 430.2837715850.

The spelling of 79664512 in words is "seventy-nine million, six hundred sixty-four thousand, five hundred twelve".