11666736 has 30 divisors (see below), whose sum is σ = 32651060. Its totient is φ = 3888864.

The previous prime is 11666701. The next prime is 11666737. The reversal of 11666736 is 63766611.

It is a super-2 number, since 2×11666736² = 272225457787392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11666736.

It is not an unprimeable number, because it can be changed into a prime (11666737) 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, 40366 + ... + 40653.

Almost surely, 2^11666736 is an apocalyptic number.

11666736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11666736 is an abundant number, since it is smaller than the sum of its proper divisors (20984324).

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

11666736 is a wasteful number, since it uses less digits than its factorization.

11666736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81033 (or 81024 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 11666736 is about 3415.6604046655. The cubic root of 11666736 is about 226.8035198170.

The spelling of 11666736 in words is "eleven million, six hundred sixty-six thousand, seven hundred thirty-six".