202251982920 has 128 divisors (see below), whose sum is σ = 653625987840. Its totient is φ = 49770132480.

The previous prime is 202251982909. The next prime is 202251982927. The reversal of 202251982920 is 29289152202.

It is not an unprimeable number, because it can be changed into a prime (202251982927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5709102 + ... + 5744418.

It is an arithmetic number, because the mean of its divisors is an integer number (5106453030).

Almost surely, 2^202251982920 is an apocalyptic number.

202251982920 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 202251982920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326812993920).

202251982920 is an abundant number, since it is smaller than the sum of its proper divisors (451374004920).

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

202251982920 is a wasteful number, since it uses less digits than its factorization.

202251982920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39015 (or 39011 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 202251982920 in words is "two hundred two billion, two hundred fifty-one million, nine hundred eighty-two thousand, nine hundred twenty".