166376317 has 2 divisors, whose sum is σ = 166376318. Its totient is φ = 166376316.

The previous prime is 166376299. The next prime is 166376323. The reversal of 166376317 is 713673661.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139688761 + 26687556 = 11819^2 + 5166^2 .

It is a cyclic number.

It is not a de Polignac number, because 166376317 - 2²⁷ = 32158589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 166376317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166376377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83188158 + 83188159.

It is an arithmetic number, because the mean of its divisors is an integer number (83188159).

Almost surely, 2^166376317 is an apocalyptic number.

It is an amenable number.

166376317 is a deficient number, since it is larger than the sum of its proper divisors (1).

166376317 is an equidigital number, since it uses as much as digits as its factorization.

166376317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 40.

The square root of 166376317 is about 12898.6943912940. The cubic root of 166376317 is about 550.0014512358.

The spelling of 166376317 in words is "one hundred sixty-six million, three hundred seventy-six thousand, three hundred seventeen".