163634215163 has 4 divisors (see below), whose sum is σ = 163669357080. Its totient is φ = 163599073248.

The previous prime is 163634215127. The next prime is 163634215169. The reversal of 163634215163 is 361512436361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163634215163 - 2⁶ = 163634215099 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 163634215163.

It is not an unprimeable number, because it can be changed into a prime (163634215169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17563973 + ... + 17573286.

It is an arithmetic number, because the mean of its divisors is an integer number (40917339270).

Almost surely, 2^163634215163 is an apocalyptic number.

163634215163 is a deficient number, since it is larger than the sum of its proper divisors (35141917).

163634215163 is an equidigital number, since it uses as much as digits as its factorization.

163634215163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35141916.

The product of its digits is 233280, while the sum is 41.

The spelling of 163634215163 in words is "one hundred sixty-three billion, six hundred thirty-four million, two hundred fifteen thousand, one hundred sixty-three".