22305544320 has 64 divisors (see below), whose sum is σ = 71098928640. Its totient is φ = 5948144640.

The previous prime is 22305544309. The next prime is 22305544337. The reversal of 22305544320 is 2344550322.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×22305544320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 5806816 + ... + 5810655.

It is an arithmetic number, because the mean of its divisors is an integer number (1110920760).

Almost surely, 2^22305544320 is an apocalyptic number.

22305544320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22305544320 is an abundant number, since it is smaller than the sum of its proper divisors (48793384320).

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

22305544320 is a wasteful number, since it uses less digits than its factorization.

22305544320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11617493 (or 11617481 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The spelling of 22305544320 in words is "twenty-two billion, three hundred five million, five hundred forty-four thousand, three hundred twenty".