80669508 has 36 divisors (see below), whose sum is σ = 190399440. Its totient is φ = 26583200.

The previous prime is 80669447. The next prime is 80669543. The reversal of 80669508 is 80596608.

It is a self number, because there is not a number n which added to its sum of digits gives 80669508.

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, 122083 + ... + 122741.

Almost surely, 2^80669508 is an apocalyptic number.

It is an amenable number.

80669508 is an abundant number, since it is smaller than the sum of its proper divisors (109729932).

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

80669508 is a wasteful number, since it uses less digits than its factorization.

80669508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 80669508 is about 8981.6205664679. The cubic root of 80669508 is about 432.0856097482.

Subtracting from 80669508 its reverse (80596608), we obtain a square (72900 = 270²).

The spelling of 80669508 in words is "eighty million, six hundred sixty-nine thousand, five hundred eight".