162243808538 has 16 divisors (see below), whose sum is σ = 279020852160. Its totient is φ = 69310908576.

The previous prime is 162243808487. The next prime is 162243808541. The reversal of 162243808538 is 835808342261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18508148 + ... + 18516911.

It is an arithmetic number, because the mean of its divisors is an integer number (17438803260).

Almost surely, 2^162243808538 is an apocalyptic number.

162243808538 is a deficient number, since it is larger than the sum of its proper divisors (116777043622).

162243808538 is a wasteful number, since it uses less digits than its factorization.

162243808538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37025381.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 162243808538 in words is "one hundred sixty-two billion, two hundred forty-three million, eight hundred eight thousand, five hundred thirty-eight".