20583836852856 has 16 divisors (see below), whose sum is σ = 51459592132200. Its totient is φ = 6861278950944.

The previous prime is 20583836852819. The next prime is 20583836852933. The reversal of 20583836852856 is 65825863838502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428829934411 + ... + 428829934458.

Almost surely, 2^{20583836852856} is an apocalyptic number.

It is an amenable number.

20583836852856 is an abundant number, since it is smaller than the sum of its proper divisors (30875755279344).

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

20583836852856 is a wasteful number, since it uses less digits than its factorization.

20583836852856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857659868878 (or 857659868874 counting only the distinct ones).

The product of its (nonzero) digits is 663552000, while the sum is 69.

The spelling of 20583836852856 in words is "twenty trillion, five hundred eighty-three billion, eight hundred thirty-six million, eight hundred fifty-two thousand, eight hundred fifty-six".