11665936 has 20 divisors (see below), whose sum is σ = 23030892. Its totient is φ = 5722496.

The previous prime is 11665931. The next prime is 11665937. The reversal of 11665936 is 63956611.

It can be written as a sum of positive squares in 2 ways, for example, as 3825936 + 7840000 = 1956^2 + 2800^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11665895 and 11665904.

It is not an unprimeable number, because it can be changed into a prime (11665931) 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, 6031 + ... + 7726.

Almost surely, 2^11665936 is an apocalyptic number.

11665936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11665936 is a deficient number, since it is larger than the sum of its proper divisors (11364956).

11665936 is a wasteful number, since it uses less digits than its factorization.

11665936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13818 (or 13812 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The square root of 11665936 is about 3415.5432949972. The cubic root of 11665936 is about 226.7983356488.

The spelling of 11665936 in words is "eleven million, six hundred sixty-five thousand, nine hundred thirty-six".