22915859202 has 80 divisors (see below), whose sum is σ = 52801611192. Its totient is φ = 7422969600.

The previous prime is 22915859149. The next prime is 22915859209. The reversal of 22915859202 is 20295851922.

It is a happy number.

22915859202 is a `hidden beast` number, since 2 + 2 + 9 + 1 + 58 + 592 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22749990561 + 165868641 = 150831^2 + 12879^2 .

It is not an unprimeable number, because it can be changed into a prime (22915859209) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6189952 + ... + 6193652.

Almost surely, 2^22915859202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22915859202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26400805596).

22915859202 is an abundant number, since it is smaller than the sum of its proper divisors (29885751990).

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

22915859202 is a wasteful number, since it uses less digits than its factorization.

22915859202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785 (or 4776 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 22915859202 in words is "twenty-two billion, nine hundred fifteen million, eight hundred fifty-nine thousand, two hundred two".