20268942631696 has 30 divisors (see below), whose sum is σ = 43165728552926. Its totient is φ = 9213155740800.

The previous prime is 20268942631631. The next prime is 20268942631733. The reversal of 20268942631696 is 69613624986202.

20268942631696 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 20114902081296 + 154040550400 = 4484964^2 + 392480^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5234745645 + ... + 5234749516.

Almost surely, 2^{20268942631696} is an apocalyptic number.

It is an amenable number.

20268942631696 is an abundant number, since it is smaller than the sum of its proper divisors (22896785921230).

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

20268942631696 is a wasteful number, since it uses less digits than its factorization.

20268942631696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10469495191 (or 10469495174 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 64.

The spelling of 20268942631696 in words is "twenty trillion, two hundred sixty-eight billion, nine hundred forty-two million, six hundred thirty-one thousand, six hundred ninety-six".