166475 has 6 divisors (see below), whose sum is σ = 206460. Its totient is φ = 133160.

The previous prime is 166471. The next prime is 166487. The reversal of 166475 is 574661.

It is not a de Polignac number, because 166475 - 2² = 166471 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 166475.

It is not an unprimeable number, because it can be changed into a prime (166471) 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, 3305 + ... + 3354.

It is an arithmetic number, because the mean of its divisors is an integer number (34410).

2¹⁶⁶⁴⁷⁵ is an apocalyptic number.

166475 is a deficient number, since it is larger than the sum of its proper divisors (39985).

166475 is an equidigital number, since it uses as much as digits as its factorization.

166475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6669 (or 6664 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 166475 is about 408.0134801695. The cubic root of 166475 is about 55.0110170768.

The spelling of 166475 in words is "one hundred sixty-six thousand, four hundred seventy-five".