22555423320 has 64 divisors (see below), whose sum is σ = 68120460000. Its totient is φ = 5974407168.

The previous prime is 22555423309. The next prime is 22555423321. The reversal of 22555423320 is 2332455522.

It is a super-2 number, since 2×22555423320² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22555423321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612865 + ... + 648624.

Almost surely, 2^22555423320 is an apocalyptic number.

22555423320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22555423320 is an abundant number, since it is smaller than the sum of its proper divisors (45565036680).

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

22555423320 is a wasteful number, since it uses less digits than its factorization.

22555423320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261652 (or 1261648 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

Adding to 22555423320 its reverse (2332455522), we get a palindrome (24887878842).

The spelling of 22555423320 in words is "twenty-two billion, five hundred fifty-five million, four hundred twenty-three thousand, three hundred twenty".