166045 has 8 divisors (see below), whose sum is σ = 217440. Its totient is φ = 120720.

The previous prime is 166043. The next prime is 166063. The reversal of 166045 is 540661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166045 - 2¹ = 166043 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1455 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (27180).

2¹⁶⁶⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

166045 is a deficient number, since it is larger than the sum of its proper divisors (51395).

166045 is a wasteful number, since it uses less digits than its factorization.

166045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 166045 is about 407.4861960852. The cubic root of 166045 is about 54.9636122950.

The spelling of 166045 in words is "one hundred sixty-six thousand, forty-five".