166006 has 4 divisors (see below), whose sum is σ = 249012. Its totient is φ = 83002.

The previous prime is 165983. The next prime is 166013. The reversal of 166006 is 600661.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41500 + ... + 41503.

It is an arithmetic number, because the mean of its divisors is an integer number (62253).

2¹⁶⁶⁰⁰⁶ is an apocalyptic number.

166006 is a deficient number, since it is larger than the sum of its proper divisors (83006).

166006 is an equidigital number, since it uses as much as digits as its factorization.

166006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83005.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 166006 is about 407.4383388931. The cubic root of 166006 is about 54.9593087453.

Adding to 166006 its reverse (600661), we get a palindrome (766667).

The spelling of 166006 in words is "one hundred sixty-six thousand, six".