166414111 has 2 divisors, whose sum is σ = 166414112. Its totient is φ = 166414110.

The previous prime is 166414109. The next prime is 166414153. The reversal of 166414111 is 111414661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166414111 - 2¹ = 166414109 is a prime.

Together with 166414109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166414181) 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 as a sum of consecutive naturals, namely, 83207055 + 83207056.

It is an arithmetic number, because the mean of its divisors is an integer number (83207056).

Almost surely, 2^166414111 is an apocalyptic number.

166414111 is a deficient number, since it is larger than the sum of its proper divisors (1).

166414111 is an equidigital number, since it uses as much as digits as its factorization.

166414111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 25.

The square root of 166414111 is about 12900.1593401012. The cubic root of 166414111 is about 550.0430941440.

Adding to 166414111 its reverse (111414661), we get a palindrome (277828772).

The spelling of 166414111 in words is "one hundred sixty-six million, four hundred fourteen thousand, one hundred eleven".