166760201 has 2 divisors, whose sum is σ = 166760202. Its totient is φ = 166760200.

The previous prime is 166760177. The next prime is 166760203. The reversal of 166760201 is 102067661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138415225 + 28344976 = 11765^2 + 5324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166760201 is a prime.

Together with 166760203, 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 (166760203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83380100 + 83380101.

It is an arithmetic number, because the mean of its divisors is an integer number (83380101).

Almost surely, 2^166760201 is an apocalyptic number.

It is an amenable number.

166760201 is a deficient number, since it is larger than the sum of its proper divisors (1).

166760201 is an equidigital number, since it uses as much as digits as its factorization.

166760201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 166760201 is about 12913.5665484017. The cubic root of 166760201 is about 550.4241367514.

The spelling of 166760201 in words is "one hundred sixty-six million, seven hundred sixty thousand, two hundred one".