22144891026564 has 24 divisors (see below), whose sum is σ = 57412680439520. Its totient is φ = 7381630342152.

The previous prime is 22144891026499. The next prime is 22144891026617. The reversal of 22144891026564 is 46562019844122.

22144891026564 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 48 + 9 + 10 + 26 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 22144891026564.

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 7 ways as a sum of consecutive naturals, for example, 102522643534 + ... + 102522643749.

Almost surely, 2^{22144891026564} is an apocalyptic number.

It is an amenable number.

22144891026564 is an abundant number, since it is smaller than the sum of its proper divisors (35267789412956).

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

22144891026564 is a wasteful number, since it uses less digits than its factorization.

22144891026564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205045287296 (or 205045287288 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 22144891026564 in words is "twenty-two trillion, one hundred forty-four billion, eight hundred ninety-one million, twenty-six thousand, five hundred sixty-four".