20660424260604 has 24 divisors (see below), whose sum is σ = 49383453111888. Its totient is φ = 6718837157760.

The previous prime is 20660424260569. The next prime is 20660424260647. The reversal of 20660424260604 is 40606242406602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20996365627 + ... + 20996366610.

It is an arithmetic number, because the mean of its divisors is an integer number (2057643879662).

Almost surely, 2^{20660424260604} is an apocalyptic number.

It is an amenable number.

20660424260604 is an abundant number, since it is smaller than the sum of its proper divisors (28723028851284).

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

20660424260604 is a wasteful number, since it uses less digits than its factorization.

20660424260604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41992732285 (or 41992732283 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 20660424260604 in words is "twenty trillion, six hundred sixty billion, four hundred twenty-four million, two hundred sixty thousand, six hundred four".