11666408 has 24 divisors (see below), whose sum is σ = 23689350. Its totient is φ = 5383872.

The previous prime is 11666407. The next prime is 11666419. The reversal of 11666408 is 80466611.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7496644 + 4169764 = 2738^2 + 2042^2 .

It is a super-2 number, since 2×11666408² = 272210151244928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2963 + ... + 5666.

Almost surely, 2^11666408 is an apocalyptic number.

It is an amenable number.

11666408 is an abundant number, since it is smaller than the sum of its proper divisors (12022942).

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

11666408 is a wasteful number, since it uses less digits than its factorization.

11666408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8661 (or 8644 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 11666408 is about 3415.6123901872. The cubic root of 11666408 is about 226.8013943367.

The spelling of 11666408 in words is "eleven million, six hundred sixty-six thousand, four hundred eight".