20560168872 has 64 divisors (see below), whose sum is σ = 57133440000. Its totient is φ = 6850766592.

The previous prime is 20560168859. The next prime is 20560168903. The reversal of 20560168872 is 27886106502.

20560168872 is a `hidden beast` number, since 2 + 0 + 560 + 1 + 6 + 8 + 87 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595129 + ... + 628727.

It is an arithmetic number, because the mean of its divisors is an integer number (892710000).

Almost surely, 2^20560168872 is an apocalyptic number.

It is an amenable number.

20560168872 is an abundant number, since it is smaller than the sum of its proper divisors (36573271128).

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

20560168872 is a wasteful number, since it uses less digits than its factorization.

20560168872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36447 (or 36437 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 20560168872 in words is "twenty billion, five hundred sixty million, one hundred sixty-eight thousand, eight hundred seventy-two".