20574517255756 has 6 divisors (see below), whose sum is σ = 36005405197580. Its totient is φ = 10287258627876.

The previous prime is 20574517255723. The next prime is 20574517255783. The reversal of 20574517255756 is 65755271547502.

It is a junction number, because it is equal to n+sod(n) for n = 20574517255694 and 20574517255703.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571814656966 + ... + 2571814656973.

Almost surely, 2^{20574517255756} is an apocalyptic number.

It is an amenable number.

20574517255756 is a deficient number, since it is larger than the sum of its proper divisors (15430887941824).

20574517255756 is a wasteful number, since it uses less digits than its factorization.

20574517255756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143629313943 (or 5143629313941 counting only the distinct ones).

The product of its (nonzero) digits is 102900000, while the sum is 61.

The spelling of 20574517255756 in words is "twenty trillion, five hundred seventy-four billion, five hundred seventeen million, two hundred fifty-five thousand, seven hundred fifty-six".