11660656 has 20 divisors (see below), whose sum is σ = 25820272. Its totient is φ = 4997376.

The previous prime is 11660651. The next prime is 11660659. The reversal of 11660656 is 65606611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51945 + ... + 52168.

Almost surely, 2^11660656 is an apocalyptic number.

11660656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11660656 is an abundant number, since it is smaller than the sum of its proper divisors (14159616).

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

11660656 is a wasteful number, since it uses less digits than its factorization.

11660656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104128 (or 104122 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 11660656 is about 3414.7702704574. The cubic root of 11660656 is about 226.7641141936.

The spelling of 11660656 in words is "eleven million, six hundred sixty thousand, six hundred fifty-six".