20568036736038 has 96 divisors (see below), whose sum is σ = 45346297651200. Its totient is φ = 6214743208960.

The previous prime is 20568036735991. The next prime is 20568036736057. The reversal of 20568036736038 is 83063763086502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1301025478 + ... + 1301041286.

It is an arithmetic number, because the mean of its divisors is an integer number (472357267200).

Almost surely, 2^{20568036736038} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20568036736038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22673148825600).

20568036736038 is an abundant number, since it is smaller than the sum of its proper divisors (24778260915162).

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

20568036736038 is a wasteful number, since it uses less digits than its factorization.

20568036736038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20898 (or 20887 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 57.

The spelling of 20568036736038 in words is "twenty trillion, five hundred sixty-eight billion, thirty-six million, seven hundred thirty-six thousand, thirty-eight".