22186855338853 has 4 divisors (see below), whose sum is σ = 22328172888940. Its totient is φ = 22045537788768.

The previous prime is 22186855338847. The next prime is 22186855338889. The reversal of 22186855338853 is 35883355868122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2576545046244 + 19610310292609 = 1605162^2 + 4428353^2 .

It is a cyclic number.

It is not a de Polignac number, because 22186855338853 - 2³³ = 22178265404261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22186855338653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70658774808 + ... + 70658775121.

It is an arithmetic number, because the mean of its divisors is an integer number (5582043222235).

Almost surely, 2^{22186855338853} is an apocalyptic number.

It is an amenable number.

22186855338853 is a deficient number, since it is larger than the sum of its proper divisors (141317550087).

22186855338853 is a wasteful number, since it uses less digits than its factorization.

22186855338853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141317550086.

The product of its digits is 331776000, while the sum is 67.

The spelling of 22186855338853 in words is "twenty-two trillion, one hundred eighty-six billion, eight hundred fifty-five million, three hundred thirty-eight thousand, eight hundred fifty-three".