20566560384392 has 32 divisors (see below), whose sum is σ = 42085369890720. Its totient is φ = 9344568656640.

The previous prime is 20566560384319. The next prime is 20566560384421. The reversal of 20566560384392 is 29348306566502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48134618 + ... + 48560009.

It is an arithmetic number, because the mean of its divisors is an integer number (1315167809085).

Almost surely, 2^{20566560384392} is an apocalyptic number.

20566560384392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20566560384392 is an abundant number, since it is smaller than the sum of its proper divisors (21518809506328).

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

20566560384392 is a wasteful number, since it uses less digits than its factorization.

20566560384392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96697061 (or 96697057 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 59.

The spelling of 20566560384392 in words is "twenty trillion, five hundred sixty-six billion, five hundred sixty million, three hundred eighty-four thousand, three hundred ninety-two".