20867100504 has 32 divisors (see below), whose sum is σ = 52902512640. Its totient is φ = 6857732000.

The previous prime is 20867100479. The next prime is 20867100509. The reversal of 20867100504 is 40500176802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20867100509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6121272 + ... + 6124679.

It is an arithmetic number, because the mean of its divisors is an integer number (1653203520).

Almost surely, 2^20867100504 is an apocalyptic number.

20867100504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20867100504 is an abundant number, since it is smaller than the sum of its proper divisors (32035412136).

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

20867100504 is a wasteful number, since it uses less digits than its factorization.

20867100504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12246031 (or 12246027 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 20867100504 in words is "twenty billion, eight hundred sixty-seven million, one hundred thousand, five hundred four".