80666808 has 32 divisors (see below), whose sum is σ = 207119760. Its totient is φ = 26161920.

The previous prime is 80666801. The next prime is 80666809. The reversal of 80666808 is 80866608.

It is a self number, because there is not a number n which added to its sum of digits gives 80666808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80666801) 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 7 ways as a sum of consecutive naturals, for example, 44533 + ... + 46308.

Almost surely, 2^80666808 is an apocalyptic number.

It is an amenable number.

80666808 is an abundant number, since it is smaller than the sum of its proper divisors (126452952).

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

80666808 is a wasteful number, since it uses less digits than its factorization.

80666808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90887 (or 90883 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 80666808 is about 8981.4702582595. The cubic root of 80666808 is about 432.0807890744.

The spelling of 80666808 in words is "eighty million, six hundred sixty-six thousand, eight hundred eight".