20066895538560 has 256 divisors, whose sum is σ = 76537198584000. Its totient is φ = 4939543461888.

The previous prime is 20066895538463. The next prime is 20066895538561. The reversal of 20066895538560 is 6583559866002.

20066895538560 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 6 + 8 + 95 + 538 + 5 + 6 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20066895538561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44439925 + ... + 44889204.

Almost surely, 2^{20066895538560} is an apocalyptic number.

20066895538560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20066895538560 is an abundant number, since it is smaller than the sum of its proper divisors (56470303045440).

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

20066895538560 is a wasteful number, since it uses less digits than its factorization.

20066895538560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89329170 (or 89329152 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 63.

The spelling of 20066895538560 in words is "twenty trillion, sixty-six billion, eight hundred ninety-five million, five hundred thirty-eight thousand, five hundred sixty".