11666508 has 36 divisors (see below), whose sum is σ = 31667832. Its totient is φ = 3333120.

The previous prime is 11666491. The next prime is 11666521. The reversal of 11666508 is 80566611.

It is a super-2 number, since 2×11666508² = 272214817828128, which contains 22 as substring.

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, 9333 + ... + 10508.

It is an arithmetic number, because the mean of its divisors is an integer number (879662).

Almost surely, 2^11666508 is an apocalyptic number.

It is an amenable number.

11666508 is an abundant number, since it is smaller than the sum of its proper divisors (20001324).

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

11666508 is a wasteful number, since it uses less digits than its factorization.

11666508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19862 (or 19853 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 11666508 is about 3415.6270288192. The cubic root of 11666508 is about 226.8020423532.

The spelling of 11666508 in words is "eleven million, six hundred sixty-six thousand, five hundred eight".