166030211 has 12 divisors (see below), whose sum is σ = 181149648. Its totient is φ = 152030592.

The previous prime is 166030187. The next prime is 166030213. The reversal of 166030211 is 112030661.

It is not a de Polignac number, because 166030211 - 2¹⁰ = 166029187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166030213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2930 + ... + 18456.

It is an arithmetic number, because the mean of its divisors is an integer number (15095804).

Almost surely, 2^166030211 is an apocalyptic number.

166030211 is a deficient number, since it is larger than the sum of its proper divisors (15119437).

166030211 is a wasteful number, since it uses less digits than its factorization.

166030211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598 (or 15581 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 166030211 is about 12885.2710875635. The cubic root of 166030211 is about 549.6198044625.

Adding to 166030211 its reverse (112030661), we get a palindrome (278060872).

The spelling of 166030211 in words is "one hundred sixty-six million, thirty thousand, two hundred eleven".