20595568968 has 108 divisors (see below), whose sum is σ = 60446928555. Its totient is φ = 6332227200.

The previous prime is 20595568949. The next prime is 20595568993. The reversal of 20595568968 is 86986559502.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

20595568968 is a `hidden beast` number, since 2 + 0 + 5 + 9 + 5 + 568 + 9 + 68 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 2440162404 + 18155406564 = 49398^2 + 134742^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=101478.

It is a super-2 number, since 2×20595568968² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15829918 + ... + 15831218.

Almost surely, 2^20595568968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20595568968

20595568968 is an abundant number, since it is smaller than the sum of its proper divisors (39851359587).

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

20595568968 is a wasteful number, since it uses less digits than its factorization.

20595568968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 20595568968 in words is "twenty billion, five hundred ninety-five million, five hundred sixty-eight thousand, nine hundred sixty-eight".