160664717 has 2 divisors, whose sum is σ = 160664718. Its totient is φ = 160664716.

The previous prime is 160664701. The next prime is 160664731. The reversal of 160664717 is 717466061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112487236 + 48177481 = 10606^2 + 6941^2 .

It is a cyclic number.

It is not a de Polignac number, because 160664717 - 2⁴ = 160664701 is a prime.

It is a Chen prime.

It is equal to p_9009695 and since 160664717 and 9009695 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (160664737) 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, 80332358 + 80332359.

It is an arithmetic number, because the mean of its divisors is an integer number (80332359).

Almost surely, 2^160664717 is an apocalyptic number.

It is an amenable number.

160664717 is a deficient number, since it is larger than the sum of its proper divisors (1).

160664717 is an equidigital number, since it uses as much as digits as its factorization.

160664717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 160664717 is about 12675.3586537029. The cubic root of 160664717 is about 543.6342844087.

The spelling of 160664717 in words is "one hundred sixty million, six hundred sixty-four thousand, seven hundred seventeen".