166055 has 4 divisors (see below), whose sum is σ = 199272. Its totient is φ = 132840.

The previous prime is 166043. The next prime is 166063. The reversal of 166055 is 550661.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 166055 - 2⁸ = 165799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166055.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 166055.

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, 16601 + ... + 16610.

It is an arithmetic number, because the mean of its divisors is an integer number (49818).

2¹⁶⁶⁰⁵⁵ is an apocalyptic number.

166055 is a deficient number, since it is larger than the sum of its proper divisors (33217).

166055 is an equidigital number, since it uses as much as digits as its factorization.

166055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33216.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 166055 is about 407.4984662548. The cubic root of 166055 is about 54.9647156608.

The spelling of 166055 in words is "one hundred sixty-six thousand, fifty-five".