166116001 has 8 divisors (see below), whose sum is σ = 169856640. Its totient is φ = 162384048.

The previous prime is 166115987. The next prime is 166116019. The reversal of 166116001 is 100611661.

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

It is a cyclic number.

It is not a de Polignac number, because 166116001 - 2¹⁵ = 166083233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166116091) 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, 50530 + ... + 53716.

It is an arithmetic number, because the mean of its divisors is an integer number (21232080).

Almost surely, 2^166116001 is an apocalyptic number.

It is an amenable number.

166116001 is a deficient number, since it is larger than the sum of its proper divisors (3740639).

166116001 is a wasteful number, since it uses less digits than its factorization.

166116001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 166116001 is about 12888.5996524060. The cubic root of 166116001 is about 549.7144534297.

Adding to 166116001 its reverse (100611661), we get a palindrome (266727662).

The spelling of 166116001 in words is "one hundred sixty-six million, one hundred sixteen thousand, one".