22320564144 has 40 divisors (see below), whose sum is σ = 57684135360. Its totient is φ = 7437261888.

The previous prime is 22320564113. The next prime is 22320564157. The reversal of 22320564144 is 44146502322.

It is a super-3 number, since 3×22320564144³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33639 + ... + 213945.

It is an arithmetic number, because the mean of its divisors is an integer number (1442103384).

Almost surely, 2^22320564144 is an apocalyptic number.

22320564144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22320564144 is an abundant number, since it is smaller than the sum of its proper divisors (35363571216).

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

22320564144 is a wasteful number, since it uses less digits than its factorization.

22320564144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182897 (or 182891 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 22320564144 in words is "twenty-two billion, three hundred twenty million, five hundred sixty-four thousand, one hundred forty-four".