11666836 has 12 divisors (see below), whose sum is σ = 21491680. Its totient is φ = 5526360.

The previous prime is 11666833. The next prime is 11666843. The reversal of 11666836 is 63866611.

It is a happy number.

It is a super-2 number, since 2×11666836² = 272230124501792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11666795 and 11666804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666833) 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, 76680 + ... + 76831.

Almost surely, 2^11666836 is an apocalyptic number.

It is an amenable number.

11666836 is a deficient number, since it is larger than the sum of its proper divisors (9824844).

11666836 is a wasteful number, since it uses less digits than its factorization.

11666836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153534 (or 153532 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 11666836 is about 3415.6750430918. The cubic root of 11666836 is about 226.8041678213.

The spelling of 11666836 in words is "eleven million, six hundred sixty-six thousand, eight hundred thirty-six".