168166 has 8 divisors (see below), whose sum is σ = 257760. Its totient is φ = 82248.

The previous prime is 168151. The next prime is 168193. The reversal of 168166 is 661861.

168166 = T₆₀ + T₆₁ + ... + T₁₀₆.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (32220).

2¹⁶⁸¹⁶⁶ is an apocalyptic number.

168166 is a deficient number, since it is larger than the sum of its proper divisors (89594).

168166 is a wasteful number, since it uses less digits than its factorization.

168166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838.

The product of its digits is 1728, while the sum is 28.

The square root of 168166 is about 410.0804799061. The cubic root of 168166 is about 55.1966514107.

The spelling of 168166 in words is "one hundred sixty-eight thousand, one hundred sixty-six".