166086 has 12 divisors (see below), whose sum is σ = 359892. Its totient is φ = 55356.

The previous prime is 166081. The next prime is 166099. The reversal of 166086 is 680661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4596 + ... + 4631.

It is an arithmetic number, because the mean of its divisors is an integer number (29991).

2¹⁶⁶⁰⁸⁶ is an apocalyptic number.

166086 is an abundant number, since it is smaller than the sum of its proper divisors (193806).

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

166086 is a wasteful number, since it uses less digits than its factorization.

166086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9235 (or 9232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 166086 is about 407.5365014327. The cubic root of 166086 is about 54.9681358131.

The spelling of 166086 in words is "one hundred sixty-six thousand, eighty-six".