20508268300 has 108 divisors (see below), whose sum is σ = 48620559960. Its totient is φ = 7504573440.

The previous prime is 20508268289. The next prime is 20508268321. The reversal of 20508268300 is 386280502.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1904331 + ... + 1915069.

It is an arithmetic number, because the mean of its divisors is an integer number (450190370).

Almost surely, 2^20508268300 is an apocalyptic number.

20508268300 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 20508268300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24310279980).

20508268300 is an abundant number, since it is smaller than the sum of its proper divisors (28112291660).

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

20508268300 is a wasteful number, since it uses less digits than its factorization.

20508268300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892 (or 10872 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20508268300 in words is "twenty billion, five hundred eight million, two hundred sixty-eight thousand, three hundred".