168505163 has 2 divisors, whose sum is σ = 168505164. Its totient is φ = 168505162.

The previous prime is 168505157. The next prime is 168505177. The reversal of 168505163 is 361505861.

168505163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168505163 - 2⁴ = 168505147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (168505123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84252581 + 84252582.

It is an arithmetic number, because the mean of its divisors is an integer number (84252582).

Almost surely, 2^168505163 is an apocalyptic number.

168505163 is a deficient number, since it is larger than the sum of its proper divisors (1).

168505163 is an equidigital number, since it uses as much as digits as its factorization.

168505163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 168505163 is about 12980.9538555531. The cubic root of 168505163 is about 552.3373399668.

The spelling of 168505163 in words is "one hundred sixty-eight million, five hundred five thousand, one hundred sixty-three".