166675 has 12 divisors (see below), whose sum is σ = 212040. Its totient is φ = 129920.

The previous prime is 166669. The next prime is 166679. The reversal of 166675 is 576661.

It is not a de Polignac number, because 166675 - 2³ = 166667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1419 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (17670).

2¹⁶⁶⁶⁷⁵ is an apocalyptic number.

166675 is a deficient number, since it is larger than the sum of its proper divisors (45365).

166675 is a wasteful number, since it uses less digits than its factorization.

166675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 177 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 166675 is about 408.2584965436. The cubic root of 166675 is about 55.0330380016.

It can be divided in two parts, 166 and 675, that added together give a square (841 = 29²).

The spelling of 166675 in words is "one hundred sixty-six thousand, six hundred seventy-five".