20545576504 has 16 divisors (see below), whose sum is σ = 38533206600. Its totient is φ = 10270054752.

The previous prime is 20545576501. The next prime is 20545576547. The reversal of 20545576504 is 40567554502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545576501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309567 + ... + 370030.

Almost surely, 2^20545576504 is an apocalyptic number.

It is an amenable number.

20545576504 is a deficient number, since it is larger than the sum of its proper divisors (17987630096).

20545576504 is a wasteful number, since it uses less digits than its factorization.

20545576504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683382 (or 683378 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 43.

The spelling of 20545576504 in words is "twenty billion, five hundred forty-five million, five hundred seventy-six thousand, five hundred four".