22505343136 has 96 divisors (see below), whose sum is σ = 48172320000. Its totient is φ = 10315210752.

The previous prime is 22505343097. The next prime is 22505343149. The reversal of 22505343136 is 63134350522.

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, 2538840 + ... + 2547688.

It is an arithmetic number, because the mean of its divisors is an integer number (501795000).

Almost surely, 2^22505343136 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 22505343136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24086160000).

22505343136 is an abundant number, since it is smaller than the sum of its proper divisors (25666976864).

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

22505343136 is a wasteful number, since it uses less digits than its factorization.

22505343136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014 (or 9006 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 22505343136 its reverse (63134350522), we get a palindrome (85639693658).

The spelling of 22505343136 in words is "twenty-two billion, five hundred five million, three hundred forty-three thousand, one hundred thirty-six".