80668272 has 20 divisors (see below), whose sum is σ = 208393160. Its totient is φ = 26889408.

The previous prime is 80668271. The next prime is 80668303. The reversal of 80668272 is 27286608.

It is a self number, because there is not a number n which added to its sum of digits gives 80668272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80668271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840247 + ... + 840342.

It is an arithmetic number, because the mean of its divisors is an integer number (10419658).

Almost surely, 2^80668272 is an apocalyptic number.

It is an amenable number.

80668272 is an abundant number, since it is smaller than the sum of its proper divisors (127724888).

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

80668272 is a wasteful number, since it uses less digits than its factorization.

80668272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680600 (or 1680594 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 80668272 is about 8981.5517590225. The cubic root of 80668272 is about 432.0834029642.

The spelling of 80668272 in words is "eighty million, six hundred sixty-eight thousand, two hundred seventy-two".