20580932538 has 12 divisors (see below), whose sum is σ = 44592020538. Its totient is φ = 6860310840.

The previous prime is 20580932521. The next prime is 20580932551. The reversal of 20580932538 is 83523908502.

20580932538 is a `hidden beast` number, since 2 + 0 + 5 + 80 + 9 + 32 + 538 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12818089089 + 7762843449 = 113217^2 + 88107^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20580932493 and 20580932502.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 571692553 + ... + 571692588.

Almost surely, 2^20580932538 is an apocalyptic number.

20580932538 is an abundant number, since it is smaller than the sum of its proper divisors (24011088000).

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

20580932538 is a wasteful number, since it uses less digits than its factorization.

20580932538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143385149 (or 1143385146 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 20580932538 in words is "twenty billion, five hundred eighty million, nine hundred thirty-two thousand, five hundred thirty-eight".