12056656 has 20 divisors (see below), whose sum is σ = 23436000. Its totient is φ = 6008672.

The previous prime is 12056647. The next prime is 12056677. The reversal of 12056656 is 65665021.

It is a congruent number.

It is an unprimeable number.

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, 4695 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^12056656 is an apocalyptic number.

12056656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12056656 is a deficient number, since it is larger than the sum of its proper divisors (11379344).

12056656 is a wasteful number, since it uses less digits than its factorization.

12056656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 12056656 is about 3472.2695747882. The cubic root of 12056656 is about 229.3025881204.

The spelling of 12056656 in words is "twelve million, fifty-six thousand, six hundred fifty-six".