166364111 has 2 divisors, whose sum is σ = 166364112. Its totient is φ = 166364110.

The previous prime is 166364089. The next prime is 166364113. The reversal of 166364111 is 111463661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166364111 - 2⁶ = 166364047 is a prime.

Together with 166364113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166364113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83182055 + 83182056.

It is an arithmetic number, because the mean of its divisors is an integer number (83182056).

Almost surely, 2^166364111 is an apocalyptic number.

166364111 is a deficient number, since it is larger than the sum of its proper divisors (1).

166364111 is an equidigital number, since it uses as much as digits as its factorization.

166364111 is an evil number, because the sum of its binary digits is even.

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

The square root of 166364111 is about 12898.2212339532. The cubic root of 166364111 is about 549.9880008401.

The spelling of 166364111 in words is "one hundred sixty-six million, three hundred sixty-four thousand, one hundred eleven".