22691605112 has 64 divisors (see below), whose sum is σ = 47440650240. Its totient is φ = 10088668800.

The previous prime is 22691605109. The next prime is 22691605127. The reversal of 22691605112 is 21150619622.

It is a happy number.

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, 779198 + ... + 807794.

It is an arithmetic number, because the mean of its divisors is an integer number (741260160).

Almost surely, 2^22691605112 is an apocalyptic number.

22691605112 is a gapful number since it is divisible by the number (22) 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 22691605112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23720325120).

22691605112 is an abundant number, since it is smaller than the sum of its proper divisors (24749045128).

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

22691605112 is a wasteful number, since it uses less digits than its factorization.

22691605112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28812 (or 28808 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 22691605112 in words is "twenty-two billion, six hundred ninety-one million, six hundred five thousand, one hundred twelve".