166341211 has 2 divisors, whose sum is σ = 166341212. Its totient is φ = 166341210.

The previous prime is 166341199. The next prime is 166341239. The reversal of 166341211 is 112143661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166341211 - 2⁵ = 166341179 is a prime.

It is not a weakly prime, because it can be changed into another prime (166341251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83170605 + 83170606.

It is an arithmetic number, because the mean of its divisors is an integer number (83170606).

Almost surely, 2^166341211 is an apocalyptic number.

166341211 is a deficient number, since it is larger than the sum of its proper divisors (1).

166341211 is an equidigital number, since it uses as much as digits as its factorization.

166341211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 166341211 is about 12897.3334840966. Note that the first 3 decimals coincide. The cubic root of 166341211 is about 549.9627644213.

Adding to 166341211 its reverse (112143661), we get a palindrome (278484872).

The spelling of 166341211 in words is "one hundred sixty-six million, three hundred forty-one thousand, two hundred eleven".