166676141 has 2 divisors, whose sum is σ = 166676142. Its totient is φ = 166676140.

The previous prime is 166676117. The next prime is 166676171. The reversal of 166676141 is 141676661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108764041 + 57912100 = 10429^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 166676141 - 2⁶ = 166676077 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166676095 and 166676104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166676171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83338070 + 83338071.

It is an arithmetic number, because the mean of its divisors is an integer number (83338071).

Almost surely, 2^166676141 is an apocalyptic number.

It is an amenable number.

166676141 is a deficient number, since it is larger than the sum of its proper divisors (1).

166676141 is an equidigital number, since it uses as much as digits as its factorization.

166676141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 166676141 is about 12910.3114214956. The cubic root of 166676141 is about 550.3316358046.

The spelling of 166676141 in words is "one hundred sixty-six million, six hundred seventy-six thousand, one hundred forty-one".