171166 has 12 divisors (see below), whose sum is σ = 272376. Its totient is φ = 80520.

The previous prime is 171163. The next prime is 171167. The reversal of 171166 is 661171.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2776 + ... + 2836.

It is an arithmetic number, because the mean of its divisors is an integer number (22698).

2¹⁷¹¹⁶⁶ is an apocalyptic number.

171166 is a deficient number, since it is larger than the sum of its proper divisors (101210).

171166 is an equidigital number, since it uses as much as digits as its factorization.

171166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 86 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 171166 is about 413.7221289706. The cubic root of 171166 is about 55.5229458998.

The spelling of 171166 in words is "one hundred seventy-one thousand, one hundred sixty-six".