163800375163 has 4 divisors (see below), whose sum is σ = 172421447560. Its totient is φ = 155179302768.

The previous prime is 163800375161. The next prime is 163800375169. The reversal of 163800375163 is 361573008361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361573008361 = 31 ⋅11663645431.

It is a cyclic number.

It is not a de Polignac number, because 163800375163 - 2¹ = 163800375161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163800375161) 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, 4310536170 + ... + 4310536207.

It is an arithmetic number, because the mean of its divisors is an integer number (43105361890).

Almost surely, 2^163800375163 is an apocalyptic number.

163800375163 is a deficient number, since it is larger than the sum of its proper divisors (8621072397).

163800375163 is an equidigital number, since it uses as much as digits as its factorization.

163800375163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621072396.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 163800375163 in words is "one hundred sixty-three billion, eight hundred million, three hundred seventy-five thousand, one hundred sixty-three".