22144018545 has 80 divisors (see below), whose sum is σ = 45186844032. Its totient is φ = 10269642240.

The previous prime is 22144018493. The next prime is 22144018553. The reversal of 22144018545 is 54581044122.

It is not a de Polignac number, because 22144018545 - 2¹⁴ = 22144002161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5592 + ... + 210521.

Almost surely, 2^22144018545 is an apocalyptic number.

It is an amenable number.

22144018545 is an abundant number, since it is smaller than the sum of its proper divisors (23042825487).

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

22144018545 is a wasteful number, since it uses less digits than its factorization.

22144018545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216164 (or 216155 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The spelling of 22144018545 in words is "twenty-two billion, one hundred forty-four million, eighteen thousand, five hundred forty-five".