22565878608 has 320 divisors, whose sum is σ = 78426980352. Its totient is φ = 5420113920.

The previous prime is 22565878589. The next prime is 22565878609. The reversal of 22565878608 is 80687856522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22565878609) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2297035 + ... + 2306837.

Almost surely, 2^22565878608 is an apocalyptic number.

22565878608 is a gapful number since it is divisible by the number (28) 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 22565878608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39213490176).

22565878608 is an abundant number, since it is smaller than the sum of its proper divisors (55861101744).

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

22565878608 is a wasteful number, since it uses less digits than its factorization.

22565878608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9882 (or 9876 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 22565878608 in words is "twenty-two billion, five hundred sixty-five million, eight hundred seventy-eight thousand, six hundred eight".