12856408168056 has 16 divisors (see below), whose sum is σ = 32141020420200. Its totient is φ = 4285469389344.

The previous prime is 12856408167991. The next prime is 12856408168091. The reversal of 12856408168056 is 65086180465821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267841836811 + ... + 267841836858.

Almost surely, 2^{12856408168056} is an apocalyptic number.

It is an amenable number.

12856408168056 is an abundant number, since it is smaller than the sum of its proper divisors (19284612252144).

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

12856408168056 is a wasteful number, since it uses less digits than its factorization.

12856408168056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535683673678 (or 535683673674 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 60.

The spelling of 12856408168056 in words is "twelve trillion, eight hundred fifty-six billion, four hundred eight million, one hundred sixty-eight thousand, fifty-six".