166833349 has 4 divisors (see below), whose sum is σ = 167482764. Its totient is φ = 166183936.

The previous prime is 166833341. The next prime is 166833361. The reversal of 166833349 is 943338661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943338661 = 1201 ⋅785461.

It can be written as a sum of positive squares in 2 ways, for example, as 105884100 + 60949249 = 10290^2 + 7807^2 .

It is a cyclic number.

It is not a de Polignac number, because 166833349 - 2³ = 166833341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166833341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324322 + ... + 324835.

It is an arithmetic number, because the mean of its divisors is an integer number (41870691).

Almost surely, 2^166833349 is an apocalyptic number.

It is an amenable number.

166833349 is a deficient number, since it is larger than the sum of its proper divisors (649415).

166833349 is an equidigital number, since it uses as much as digits as its factorization.

166833349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649414.

The product of its digits is 279936, while the sum is 43.

The square root of 166833349 is about 12916.3984531293. The cubic root of 166833349 is about 550.5046046709.

The spelling of 166833349 in words is "one hundred sixty-six million, eight hundred thirty-three thousand, three hundred forty-nine".