166375375211 has 2 divisors, whose sum is σ = 166375375212. Its totient is φ = 166375375210.

The previous prime is 166375375193. The next prime is 166375375213. The reversal of 166375375211 is 112573573661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166375375211 - 2²² = 166371180907 is a prime.

Together with 166375375213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166375375213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83187687605 + 83187687606.

It is an arithmetic number, because the mean of its divisors is an integer number (83187687606).

Almost surely, 2^166375375211 is an apocalyptic number.

166375375211 is a deficient number, since it is larger than the sum of its proper divisors (1).

166375375211 is an equidigital number, since it uses as much as digits as its factorization.

166375375211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 47.

The spelling of 166375375211 in words is "one hundred sixty-six billion, three hundred seventy-five million, three hundred seventy-five thousand, two hundred eleven".