166013717 has 2 divisors, whose sum is σ = 166013718. Its totient is φ = 166013716.

The previous prime is 166013699. The next prime is 166013759. The reversal of 166013717 is 717310661.

166013717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164070481 + 1943236 = 12809^2 + 1394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166013717 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 (166013767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83006858 + 83006859.

It is an arithmetic number, because the mean of its divisors is an integer number (83006859).

Almost surely, 2^166013717 is an apocalyptic number.

It is an amenable number.

166013717 is a deficient number, since it is larger than the sum of its proper divisors (1).

166013717 is an equidigital number, since it uses as much as digits as its factorization.

166013717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 166013717 is about 12884.6310385668. The cubic root of 166013717 is about 549.6016034993.

The spelling of 166013717 in words is "one hundred sixty-six million, thirteen thousand, seven hundred seventeen".