11621656 has 16 divisors (see below), whose sum is σ = 21853800. Its totient is φ = 5793984.

The previous prime is 11621639. The next prime is 11621657. The reversal of 11621656 is 65612611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621657) 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, 1116 + ... + 4948.

Almost surely, 2^11621656 is an apocalyptic number.

It is an amenable number.

11621656 is a deficient number, since it is larger than the sum of its proper divisors (10232144).

11621656 is a wasteful number, since it uses less digits than its factorization.

11621656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218 (or 4214 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 11621656 is about 3409.0550010230. The cubic root of 11621656 is about 226.5110215599.

The spelling of 11621656 in words is "eleven million, six hundred twenty-one thousand, six hundred fifty-six".