166676117 has 2 divisors, whose sum is σ = 166676118. Its totient is φ = 166676116.

The previous prime is 166676099. The next prime is 166676141. The reversal of 166676117 is 711676661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159921316 + 6754801 = 12646^2 + 2599^2 .

It is a cyclic number.

It is not a de Polignac number, because 166676117 - 2¹² = 166672021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166672117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83338058 + 83338059.

It is an arithmetic number, because the mean of its divisors is an integer number (83338059).

Almost surely, 2^166676117 is an apocalyptic number.

It is an amenable number.

166676117 is a deficient number, since it is larger than the sum of its proper divisors (1).

166676117 is an equidigital number, since it uses as much as digits as its factorization.

166676117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 166676117 is about 12910.3104920060. The cubic root of 166676117 is about 550.3316093902.

The spelling of 166676117 in words is "one hundred sixty-six million, six hundred seventy-six thousand, one hundred seventeen".