11656956 has 96 divisors (see below), whose sum is σ = 31046400. Its totient is φ = 3386880.

The previous prime is 11656933. The next prime is 11656973. The reversal of 11656956 is 65965611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271071 + ... + 271113.

It is an arithmetic number, because the mean of its divisors is an integer number (323400).

Almost surely, 2^11656956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11656956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15523200).

11656956 is an abundant number, since it is smaller than the sum of its proper divisors (19389444).

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

11656956 is a wasteful number, since it uses less digits than its factorization.

11656956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 137 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 11656956 is about 3414.2284633574. The cubic root of 11656956 is about 226.7401270931.

The spelling of 11656956 in words is "eleven million, six hundred fifty-six thousand, nine hundred fifty-six".