20504360208 has 20 divisors (see below), whose sum is σ = 52969597328. Its totient is φ = 6834786720.

The previous prime is 20504360159. The next prime is 20504360221. The reversal of 20504360208 is 80206340502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213587038 + ... + 213587133.

Almost surely, 2^20504360208 is an apocalyptic number.

It is an amenable number.

20504360208 is an abundant number, since it is smaller than the sum of its proper divisors (32465237120).

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

20504360208 is a wasteful number, since it uses less digits than its factorization.

20504360208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427174182 (or 427174176 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20504360208 in words is "twenty billion, five hundred four million, three hundred sixty thousand, two hundred eight".