22518890163 has 160 divisors (see below), whose sum is σ = 44335572480. Its totient is φ = 11181360960.

The previous prime is 22518890153. The next prime is 22518890189. The reversal of 22518890163 is 36109881522.

22518890163 is a `hidden beast` number, since 225 + 188 + 90 + 163 = 666.

It is not a de Polignac number, because 22518890163 - 2¹⁰ = 22518889139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22518890123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 16400545 + ... + 16401917.

It is an arithmetic number, because the mean of its divisors is an integer number (277097328).

Almost surely, 2^22518890163 is an apocalyptic number.

22518890163 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22518890163 is a deficient number, since it is larger than the sum of its proper divisors (21816682317).

22518890163 is a wasteful number, since it uses less digits than its factorization.

22518890163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 22518890163 in words is "twenty-two billion, five hundred eighteen million, eight hundred ninety thousand, one hundred sixty-three".