166004 has 12 divisors (see below), whose sum is σ = 297024. Its totient is φ = 81144.

The previous prime is 165983. The next prime is 166013. The reversal of 166004 is 400661.

It is a congruent number.

It is an unprimeable number.

166004 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 254 + ... + 629.

It is an arithmetic number, because the mean of its divisors is an integer number (24752).

2¹⁶⁶⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

166004 is a deficient number, since it is larger than the sum of its proper divisors (131020).

166004 is a wasteful number, since it uses less digits than its factorization.

166004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 166004 is about 407.4358845266. The cubic root of 166004 is about 54.9590880323.

Adding to 166004 its reverse (400661), we get a palindrome (566665).

The spelling of 166004 in words is "one hundred sixty-six thousand, four".