22737297128 has 320 divisors, whose sum is σ = 57936332160. Its totient is φ = 8293114368.

The previous prime is 22737297127. The next prime is 22737297133. The reversal of 22737297128 is 82179273722.

Its product of digits (1185408) is a multiple of the sum of its prime divisors (189).

It is not an unprimeable number, because it can be changed into a prime (22737297127) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 212498051 + ... + 212498157.

It is an arithmetic number, because the mean of its divisors is an integer number (181051038).

Almost surely, 2^22737297128 is an apocalyptic number.

22737297128 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 22737297128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28968166080).

22737297128 is an abundant number, since it is smaller than the sum of its proper divisors (35199035032).

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

22737297128 is a wasteful number, since it uses less digits than its factorization.

22737297128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 189 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 50.

The spelling of 22737297128 in words is "twenty-two billion, seven hundred thirty-seven million, two hundred ninety-seven thousand, one hundred twenty-eight".