163289997937 has 4 divisors (see below), whose sum is σ = 178134543216. Its totient is φ = 148445452660.

The previous prime is 163289997931. The next prime is 163289997947. The reversal of 163289997937 is 739799982361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163289997937 - 2²⁷ = 163155780209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163289997937.

It is not an unprimeable number, because it can be changed into a prime (163289997931) 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 3 ways as a sum of consecutive naturals, for example, 7422272623 + ... + 7422272644.

It is an arithmetic number, because the mean of its divisors is an integer number (44533635804).

Almost surely, 2^163289997937 is an apocalyptic number.

It is an amenable number.

163289997937 is a deficient number, since it is larger than the sum of its proper divisors (14844545279).

163289997937 is a wasteful number, since it uses less digits than its factorization.

163289997937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14844545278.

The product of its digits is 277766496, while the sum is 73.

The spelling of 163289997937 in words is "one hundred sixty-three billion, two hundred eighty-nine million, nine hundred ninety-seven thousand, nine hundred thirty-seven".