22725618580 has 96 divisors (see below), whose sum is σ = 57798800640. Its totient is φ = 7339422720.

The previous prime is 22725618571. The next prime is 22725618593. The reversal of 22725618580 is 8581652722.

It is a self number, because there is not a number n which added to its sum of digits gives 22725618580.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98199 + ... + 234721.

It is an arithmetic number, because the mean of its divisors is an integer number (602070840).

Almost surely, 2^22725618580 is an apocalyptic number.

22725618580 is a gapful number since it is divisible by the number (20) 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 22725618580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28899400320).

22725618580 is an abundant number, since it is smaller than the sum of its proper divisors (35073182060).

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

22725618580 is a wasteful number, since it uses less digits than its factorization.

22725618580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136609 (or 136607 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 22725618580 in words is "twenty-two billion, seven hundred twenty-five million, six hundred eighteen thousand, five hundred eighty".