166013183 has 4 divisors (see below), whose sum is σ = 189729360. Its totient is φ = 142297008.

The previous prime is 166013179. The next prime is 166013251. The reversal of 166013183 is 381310661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 381310661 = 2203 ⋅173087.

It is not a de Polignac number, because 166013183 - 2² = 166013179 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 (166013383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11858078 + ... + 11858091.

It is an arithmetic number, because the mean of its divisors is an integer number (47432340).

Almost surely, 2^166013183 is an apocalyptic number.

166013183 is a deficient number, since it is larger than the sum of its proper divisors (23716177).

166013183 is an equidigital number, since it uses as much as digits as its factorization.

166013183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716176.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 166013183 is about 12884.6103161873. The cubic root of 166013183 is about 549.6010142155.

The spelling of 166013183 in words is "one hundred sixty-six million, thirteen thousand, one hundred eighty-three".