20502634360 has 128 divisors (see below), whose sum is σ = 50678006400. Its totient is φ = 7418972160.

The previous prime is 20502634337. The next prime is 20502634391. The reversal of 20502634360 is 6343620502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10054221 + ... + 10056259.

It is an arithmetic number, because the mean of its divisors is an integer number (395921925).

Almost surely, 2^20502634360 is an apocalyptic number.

20502634360 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 20502634360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25339003200).

20502634360 is an abundant number, since it is smaller than the sum of its proper divisors (30175372040).

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

20502634360 is a wasteful number, since it uses less digits than its factorization.

20502634360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441 (or 2437 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 20502634360 in words is "twenty billion, five hundred two million, six hundred thirty-four thousand, three hundred sixty".