20502540120204 has 72 divisors (see below), whose sum is σ = 53614379866320. Its totient is φ = 6598344412800.

The previous prime is 20502540120143. The next prime is 20502540120211. The reversal of 20502540120204 is 40202104520502.

20502540120204 is a `hidden beast` number, since 2 + 0 + 50 + 2 + 5 + 401 + 2 + 0 + 204 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42702034 + ... + 43179494.

It is an arithmetic number, because the mean of its divisors is an integer number (744644164810).

Almost surely, 2^{20502540120204} is an apocalyptic number.

It is an amenable number.

20502540120204 is an abundant number, since it is smaller than the sum of its proper divisors (33111839746116).

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

20502540120204 is a wasteful number, since it uses less digits than its factorization.

20502540120204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518631 (or 518626 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 20502540120204 its reverse (40202104520502), we get a palindrome (60704644640706).

The spelling of 20502540120204 in words is "twenty trillion, five hundred two billion, five hundred forty million, one hundred twenty thousand, two hundred four".