22158168844508 has 6 divisors (see below), whose sum is σ = 38776795477896. Its totient is φ = 11079084422252.

The previous prime is 22158168844447. The next prime is 22158168844517. The reversal of 22158168844508 is 80544886185122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769771105560 + ... + 2769771105567.

It is an arithmetic number, because the mean of its divisors is an integer number (6462799246316).

Almost surely, 2^{22158168844508} is an apocalyptic number.

It is an amenable number.

22158168844508 is a deficient number, since it is larger than the sum of its proper divisors (16618626633388).

22158168844508 is a wasteful number, since it uses less digits than its factorization.

22158168844508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539542211131 (or 5539542211129 counting only the distinct ones).

The product of its (nonzero) digits is 39321600, while the sum is 62.

The spelling of 22158168844508 in words is "twenty-two trillion, one hundred fifty-eight billion, one hundred sixty-eight million, eight hundred forty-four thousand, five hundred eight".