201200161717 has 2 divisors, whose sum is σ = 201200161718. Its totient is φ = 201200161716.

The previous prime is 201200161663. The next prime is 201200161739. The reversal of 201200161717 is 717161002102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101423777841 + 99776383876 = 318471^2 + 315874^2 .

It is a cyclic number.

It is not a de Polignac number, because 201200161717 - 2³⁵ = 166840423349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201200162717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600080858 + 100600080859.

It is an arithmetic number, because the mean of its divisors is an integer number (100600080859).

Almost surely, 2^201200161717 is an apocalyptic number.

It is an amenable number.

201200161717 is a deficient number, since it is larger than the sum of its proper divisors (1).

201200161717 is an equidigital number, since it uses as much as digits as its factorization.

201200161717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

Adding to 201200161717 its reverse (717161002102), we get a palindrome (918361163819).

The spelling of 201200161717 in words is "two hundred one billion, two hundred million, one hundred sixty-one thousand, seven hundred seventeen".