22191167088 has 120 divisors (see below), whose sum is σ = 62605792080. Its totient is φ = 7337594880.

The previous prime is 22191167087. The next prime is 22191167093. The reversal of 22191167088 is 88076119122.

It is a Cunningham number, because it is equal to 148967²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22191167081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10724518 + ... + 10726586.

It is an arithmetic number, because the mean of its divisors is an integer number (521714934).

Almost surely, 2^22191167088 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 22191167088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31302896040).

22191167088 is an abundant number, since it is smaller than the sum of its proper divisors (40414624992).

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

22191167088 is a wasteful number, since it uses less digits than its factorization.

22191167088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647 (or 2638 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 22191167088 in words is "twenty-two billion, one hundred ninety-one million, one hundred sixty-seven thousand, eighty-eight".