20500838600 has 192 divisors, whose sum is σ = 52863580800. Its totient is φ = 7331840000.

The previous prime is 20500838599. The next prime is 20500838639. The reversal of 20500838600 is 683800502.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57105221 + ... + 57105579.

It is an arithmetic number, because the mean of its divisors is an integer number (275331150).

Almost surely, 2^20500838600 is an apocalyptic number.

20500838600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20500838600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26431790400).

20500838600 is an abundant number, since it is smaller than the sum of its proper divisors (32362742200).

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

20500838600 is a wasteful number, since it uses less digits than its factorization.

20500838600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 20500838600 in words is "twenty billion, five hundred million, eight hundred thirty-eight thousand, six hundred".