170001668513 has 2 divisors, whose sum is σ = 170001668514. Its totient is φ = 170001668512.

The previous prime is 170001668489. The next prime is 170001668531. The reversal of 170001668513 is 315866100071.

170001668513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (170001668531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158995980049 + 11005688464 = 398743^2 + 104908^2 .

It is an emirp because it is prime and its reverse (315866100071) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 170001668513 - 2¹⁴ = 170001652129 is a prime.

It is not a weakly prime, because it can be changed into another prime (170001661513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85000834256 + 85000834257.

It is an arithmetic number, because the mean of its divisors is an integer number (85000834257).

Almost surely, 2^170001668513 is an apocalyptic number.

It is an amenable number.

170001668513 is a deficient number, since it is larger than the sum of its proper divisors (1).

170001668513 is an equidigital number, since it uses as much as digits as its factorization.

170001668513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

Adding to 170001668513 its reverse (315866100071), we get a palindrome (485867768584).

The spelling of 170001668513 in words is "one hundred seventy billion, one million, six hundred sixty-eight thousand, five hundred thirteen".