22620736320 has 672 divisors, whose sum is σ = 91415713536. Its totient is φ = 4696473600.

The previous prime is 22620736309. The next prime is 22620736393. The reversal of 22620736320 is 2363702622.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43417660 + ... + 43418180.

It is an arithmetic number, because the mean of its divisors is an integer number (136035288).

Almost surely, 2^22620736320 is an apocalyptic number.

22620736320 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 22620736320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45707856768).

22620736320 is an abundant number, since it is smaller than the sum of its proper divisors (68794977216).

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

22620736320 is a wasteful number, since it uses less digits than its factorization.

22620736320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

The spelling of 22620736320 in words is "twenty-two billion, six hundred twenty million, seven hundred thirty-six thousand, three hundred twenty".