20571344104 has 16 divisors (see below), whose sum is σ = 39299030820. Its totient is φ = 10091602560.

The previous prime is 20571344083. The next prime is 20571344153. The reversal of 20571344104 is 40144317502.

It can be written as a sum of positive squares in 2 ways, for example, as 20249859204 + 321484900 = 142302^2 + 17930^2 .

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, 24258237 + ... + 24259084.

Almost surely, 2^20571344104 is an apocalyptic number.

It is an amenable number.

20571344104 is a deficient number, since it is larger than the sum of its proper divisors (18727686716).

20571344104 is a wasteful number, since it uses less digits than its factorization.

20571344104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48517380 (or 48517376 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 20571344104 in words is "twenty billion, five hundred seventy-one million, three hundred forty-four thousand, one hundred four".