166441133 has 16 divisors (see below), whose sum is σ = 179853696. Its totient is φ = 153616320.

The previous prime is 166441117. The next prime is 166441141. The reversal of 166441133 is 331144661.

It is a cyclic number.

It is not a de Polignac number, because 166441133 - 2⁴ = 166441117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 166441096 and 166441105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166441153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110735 + ... + 112227.

It is an arithmetic number, because the mean of its divisors is an integer number (11240856).

Almost surely, 2^166441133 is an apocalyptic number.

It is an amenable number.

166441133 is a deficient number, since it is larger than the sum of its proper divisors (13412563).

166441133 is a wasteful number, since it uses less digits than its factorization.

166441133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its digits is 5184, while the sum is 29.

The square root of 166441133 is about 12901.2066489922. The cubic root of 166441133 is about 550.0728641757.

Adding to 166441133 its reverse (331144661), we get a palindrome (497585794).

The spelling of 166441133 in words is "one hundred sixty-six million, four hundred forty-one thousand, one hundred thirty-three".