20615616560604 has 48 divisors (see below), whose sum is σ = 53589666402720. Its totient is φ = 6124533300480.

The previous prime is 20615616560599. The next prime is 20615616560711. The reversal of 20615616560604 is 40606561651602.

It is a congruent number.

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, 2278467687 + ... + 2278476734.

It is an arithmetic number, because the mean of its divisors is an integer number (1116451383390).

Almost surely, 2^{20615616560604} is an apocalyptic number.

It is an amenable number.

20615616560604 is an abundant number, since it is smaller than the sum of its proper divisors (32974049842116).

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

20615616560604 is a wasteful number, since it uses less digits than its factorization.

20615616560604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556944470 (or 4556944468 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 20615616560604 in words is "twenty trillion, six hundred fifteen billion, six hundred sixteen million, five hundred sixty thousand, six hundred four".