22170813808 has 160 divisors (see below), whose sum is σ = 52363023552. Its totient is φ = 8957952000.

The previous prime is 22170813787. The next prime is 22170813839. The reversal of 22170813808 is 80831807122.

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, 8548960 + ... + 8551552.

Almost surely, 2^22170813808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22170813808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26181511776).

22170813808 is an abundant number, since it is smaller than the sum of its proper divisors (30192209744).

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

22170813808 is a wasteful number, since it uses less digits than its factorization.

22170813808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763 (or 2757 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 22170813808 in words is "twenty-two billion, one hundred seventy million, eight hundred thirteen thousand, eight hundred eight".