22185454764 has 48 divisors (see below), whose sum is σ = 56481344640. Its totient is φ = 6721760640.

The previous prime is 22185454751. The next prime is 22185454769. The reversal of 22185454764 is 46745458122.

It is not an unprimeable number, because it can be changed into a prime (22185454769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1186512 + ... + 1205064.

It is an arithmetic number, because the mean of its divisors is an integer number (1176694680).

Almost surely, 2^22185454764 is an apocalyptic number.

It is an amenable number.

22185454764 is an abundant number, since it is smaller than the sum of its proper divisors (34295889876).

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

22185454764 is a wasteful number, since it uses less digits than its factorization.

22185454764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27630 (or 27628 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 48.

The spelling of 22185454764 in words is "twenty-two billion, one hundred eighty-five million, four hundred fifty-four thousand, seven hundred sixty-four".