11664636 has 24 divisors (see below), whose sum is σ = 27272784. Its totient is φ = 3880320.

The previous prime is 11664619. The next prime is 11664637. The reversal of 11664636 is 63646611.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11664597 and 11664606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10776 + ... + 11808.

It is an arithmetic number, because the mean of its divisors is an integer number (1136366).

Almost surely, 2^11664636 is an apocalyptic number.

It is an amenable number.

11664636 is an abundant number, since it is smaller than the sum of its proper divisors (15608148).

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

11664636 is a wasteful number, since it uses less digits than its factorization.

11664636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981 (or 1979 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 11664636 is about 3415.3529832215. The cubic root of 11664636 is about 226.7899108701.

The spelling of 11664636 in words is "eleven million, six hundred sixty-four thousand, six hundred thirty-six".