18167992163 has 2 divisors, whose sum is σ = 18167992164. Its totient is φ = 18167992162.

The previous prime is 18167992159. The next prime is 18167992187. The reversal of 18167992163 is 36129976181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18167992163 - 2² = 18167992159 is a prime.

It is not a weakly prime, because it can be changed into another prime (18167992103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9083996081 + 9083996082.

It is an arithmetic number, because the mean of its divisors is an integer number (9083996082).

Almost surely, 2^18167992163 is an apocalyptic number.

18167992163 is a deficient number, since it is larger than the sum of its proper divisors (1).

18167992163 is an equidigital number, since it uses as much as digits as its factorization.

18167992163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The spelling of 18167992163 in words is "eighteen billion, one hundred sixty-seven million, nine hundred ninety-two thousand, one hundred sixty-three".