22392621552 has 80 divisors (see below), whose sum is σ = 66250045440. Its totient is φ = 6384489216.

The previous prime is 22392621539. The next prime is 22392621571. The reversal of 22392621552 is 25512629322.

It is a self number, because there is not a number n which added to its sum of digits gives 22392621552.

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 15 ways as a sum of consecutive naturals, for example, 91378 + ... + 230510.

It is an arithmetic number, because the mean of its divisors is an integer number (828125568).

Almost surely, 2^22392621552 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 22392621552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33125022720).

22392621552 is an abundant number, since it is smaller than the sum of its proper divisors (43857423888).

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

22392621552 is a wasteful number, since it uses less digits than its factorization.

22392621552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139630 (or 139624 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The spelling of 22392621552 in words is "twenty-two billion, three hundred ninety-two million, six hundred twenty-one thousand, five hundred fifty-two".