161168166 has 24 divisors (see below), whose sum is σ = 350400960. Its totient is φ = 53537616.

The previous prime is 161168129. The next prime is 161168191. The reversal of 161168166 is 661861161.

It is a self number, because there is not a number n which added to its sum of digits gives 161168166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10006 + ... + 20553.

It is an arithmetic number, because the mean of its divisors is an integer number (14600040).

Almost surely, 2^161168166 is an apocalyptic number.

161168166 is an abundant number, since it is smaller than the sum of its proper divisors (189232794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161168166 is a wasteful number, since it uses less digits than its factorization.

161168166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30860 (or 30857 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 161168166 is about 12695.2024796771. The cubic root of 161168166 is about 544.2015252311.

The spelling of 161168166 in words is "one hundred sixty-one million, one hundred sixty-eight thousand, one hundred sixty-six".