22351332344 has 64 divisors (see below), whose sum is σ = 46065801600. Its totient is φ = 10082793600.

The previous prime is 22351332323. The next prime is 22351332373. The reversal of 22351332344 is 44323315322.

It is a self number, because there is not a number n which added to its sum of digits gives 22351332344.

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, 9858299 + ... + 9860565.

It is an arithmetic number, because the mean of its divisors is an integer number (719778150).

Almost surely, 2^22351332344 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 22351332344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23032900800).

22351332344 is an abundant number, since it is smaller than the sum of its proper divisors (23714469256).

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

22351332344 is a wasteful number, since it uses less digits than its factorization.

22351332344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084 (or 3080 counting only the distinct ones).

The product of its digits is 51840, while the sum is 32.

Adding to 22351332344 its reverse (44323315322), we get a palindrome (66674647666).

The spelling of 22351332344 in words is "twenty-two billion, three hundred fifty-one million, three hundred thirty-two thousand, three hundred forty-four".