166182118 has 4 divisors (see below), whose sum is σ = 249273180. Its totient is φ = 83091058.

The previous prime is 166182101. The next prime is 166182131. The reversal of 166182118 is 811281661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 811281661 = 1907 ⋅425423.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41545528 + ... + 41545531.

It is an arithmetic number, because the mean of its divisors is an integer number (62318295).

Almost surely, 2^166182118 is an apocalyptic number.

166182118 is a deficient number, since it is larger than the sum of its proper divisors (83091062).

166182118 is an equidigital number, since it uses as much as digits as its factorization.

166182118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83091061.

The product of its digits is 4608, while the sum is 34.

The square root of 166182118 is about 12891.1643384141. The cubic root of 166182118 is about 549.7873756635.

The spelling of 166182118 in words is "one hundred sixty-six million, one hundred eighty-two thousand, one hundred eighteen".