22153454464 has 32 divisors (see below), whose sum is σ = 44152495200. Its totient is φ = 11072044032.

The previous prime is 22153454447. The next prime is 22153454473. The reversal of 22153454464 is 46445435122.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277852 + ... + 348580.

It is an arithmetic number, because the mean of its divisors is an integer number (1379765475).

Almost surely, 2^22153454464 is an apocalyptic number.

It is an amenable number.

22153454464 is a deficient number, since it is larger than the sum of its proper divisors (21999040736).

22153454464 is an equidigital number, since it uses as much as digits as its factorization.

22153454464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73190 (or 73178 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

Adding to 22153454464 its reverse (46445435122), we get a palindrome (68598889586).

The spelling of 22153454464 in words is "twenty-two billion, one hundred fifty-three million, four hundred fifty-four thousand, four hundred sixty-four".