163875636193 has 2 divisors, whose sum is σ = 163875636194. Its totient is φ = 163875636192.

The previous prime is 163875636191. The next prime is 163875636209. The reversal of 163875636193 is 391636578361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86053049104 + 77822587089 = 293348^2 + 278967^2 .

It is a cyclic number.

It is not a de Polignac number, because 163875636193 - 2¹ = 163875636191 is a prime.

Together with 163875636191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (163875636191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81937818096 + 81937818097.

It is an arithmetic number, because the mean of its divisors is an integer number (81937818097).

Almost surely, 2^163875636193 is an apocalyptic number.

It is an amenable number.

163875636193 is a deficient number, since it is larger than the sum of its proper divisors (1).

163875636193 is an equidigital number, since it uses as much as digits as its factorization.

163875636193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 58.

The spelling of 163875636193 in words is "one hundred sixty-three billion, eight hundred seventy-five million, six hundred thirty-six thousand, one hundred ninety-three".