22621028352 has 256 divisors, whose sum is σ = 67174947840. Its totient is φ = 6723993600.

The previous prime is 22621028351. The next prime is 22621028357. The reversal of 22621028352 is 25382012622.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22621028351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39616227 + ... + 39616797.

It is an arithmetic number, because the mean of its divisors is an integer number (262402140).

Almost surely, 2^22621028352 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 22621028352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587473920).

22621028352 is an abundant number, since it is smaller than the sum of its proper divisors (44553919488).

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

22621028352 is an equidigital number, since it uses as much as digits as its factorization.

22621028352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 620 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 22621028352 in words is "twenty-two billion, six hundred twenty-one million, twenty-eight thousand, three hundred fifty-two".