22118510464 has 48 divisors (see below), whose sum is σ = 45996836760. Its totient is φ = 10574558720.

The previous prime is 22118510443. The next prime is 22118510483. The reversal of 22118510464 is 46401581122.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 8068134 + ... + 8070874.

Almost surely, 2^22118510464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22118510464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22998418380).

22118510464 is an abundant number, since it is smaller than the sum of its proper divisors (23878326296).

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

22118510464 is an frugal number, since it uses more digits than its factorization.

22118510464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519 (or 2766 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 22118510464 in words is "twenty-two billion, one hundred eighteen million, five hundred ten thousand, four hundred sixty-four".