163966079 has 2 divisors, whose sum is σ = 163966080. Its totient is φ = 163966078.

The previous prime is 163966069. The next prime is 163966097. The reversal of 163966079 is 970669361.

It is a happy number.

Together with next prime (163966097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (970669361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163966079 - 2⁴ = 163966063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163966039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81983039 + 81983040.

It is an arithmetic number, because the mean of its divisors is an integer number (81983040).

Almost surely, 2^163966079 is an apocalyptic number.

163966079 is a deficient number, since it is larger than the sum of its proper divisors (1).

163966079 is an equidigital number, since it uses as much as digits as its factorization.

163966079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 163966079 is about 12804.9240138316. The cubic root of 163966079 is about 547.3326263609.

The spelling of 163966079 in words is "one hundred sixty-three million, nine hundred sixty-six thousand, seventy-nine".