11918656 has 14 divisors (see below), whose sum is σ = 23651210. Its totient is φ = 5959296.

The previous prime is 11918653. The next prime is 11918657. The reversal of 11918656 is 65681911.

11918656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9096256 + 2822400 = 3016^2 + 1680^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11918653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93051 + ... + 93178.

Almost surely, 2^11918656 is an apocalyptic number.

11918656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11918656 is a deficient number, since it is larger than the sum of its proper divisors (11732554).

11918656 is an equidigital number, since it uses as much as digits as its factorization.

11918656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186241 (or 186231 counting only the distinct ones).

The product of its digits is 12960, while the sum is 37.

The square root of 11918656 is about 3452.3406552656. The cubic root of 11918656 is about 228.4243661149.

The spelling of 11918656 in words is "eleven million, nine hundred eighteen thousand, six hundred fifty-six".