22140234688 has 112 divisors (see below), whose sum is σ = 52387219584. Its totient is φ = 9150704640.

The previous prime is 22140234679. The next prime is 22140234719. The reversal of 22140234688 is 88643204122.

It is a self number, because there is not a number n which added to its sum of digits gives 22140234688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595131 + ... + 631237.

It is an arithmetic number, because the mean of its divisors is an integer number (467743032).

Almost surely, 2^22140234688 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 22140234688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26193609792).

22140234688 is an abundant number, since it is smaller than the sum of its proper divisors (30246984896).

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

22140234688 is a wasteful number, since it uses less digits than its factorization.

22140234688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36210 (or 36200 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 22140234688 in words is "twenty-two billion, one hundred forty million, two hundred thirty-four thousand, six hundred eighty-eight".