163613568938 has 16 divisors (see below), whose sum is σ = 246846126240. Its totient is φ = 81332353200.

The previous prime is 163613568931. The next prime is 163613568971. The reversal of 163613568938 is 839865316361.

It is not an unprimeable number, because it can be changed into a prime (163613568931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191093 + ... + 603111.

It is an arithmetic number, because the mean of its divisors is an integer number (15427882890).

Almost surely, 2^163613568938 is an apocalyptic number.

163613568938 is a deficient number, since it is larger than the sum of its proper divisors (83232557302).

163613568938 is a wasteful number, since it uses less digits than its factorization.

163613568938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413173.

The product of its digits is 16796160, while the sum is 59.

The spelling of 163613568938 in words is "one hundred sixty-three billion, six hundred thirteen million, five hundred sixty-eight thousand, nine hundred thirty-eight".