79066656 has 72 divisors (see below), whose sum is σ = 225876924. Its totient is φ = 26234880.

The previous prime is 79066649. The next prime is 79066661. The reversal of 79066656 is 65666097.

It can be written as a sum of positive squares in 2 ways, for example, as 69555600 + 9511056 = 8340^2 + 3084^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80440 + ... + 81416.

Almost surely, 2^79066656 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 79066656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112938462).

79066656 is an abundant number, since it is smaller than the sum of its proper divisors (146810268).

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

79066656 is a wasteful number, since it uses less digits than its factorization.

79066656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 79066656 is about 8891.9433196574. The cubic root of 79066656 is about 429.2046882119.

The spelling of 79066656 in words is "seventy-nine million, sixty-six thousand, six hundred fifty-six".