166101 has 8 divisors (see below), whose sum is σ = 238560. Its totient is φ = 102192.

The previous prime is 166099. The next prime is 166147. The reversal of 166101 is 101661.

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

It is not a de Polignac number, because 166101 - 2¹ = 166099 is a prime.

It is a Curzon number.

166101 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 166101.

It is not an unprimeable number, because it can be changed into a prime (166151) 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, 2091 + ... + 2168.

It is an arithmetic number, because the mean of its divisors is an integer number (29820).

2¹⁶⁶¹⁰¹ is an apocalyptic number.

It is an amenable number.

166101 is a deficient number, since it is larger than the sum of its proper divisors (72459).

166101 is a wasteful number, since it uses less digits than its factorization.

166101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 166101 is about 407.5549042767. The cubic root of 166101 is about 54.9697905727.

Adding to 166101 its reverse (101661), we get a palindrome (267762).

The spelling of 166101 in words is "one hundred sixty-six thousand, one hundred one".