2020216717 has 2 divisors, whose sum is σ = 2020216718. Its totient is φ = 2020216716.

The previous prime is 2020216637. The next prime is 2020216729. The reversal of 2020216717 is 7176120202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1668804201 + 351412516 = 40851^2 + 18746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020216717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020216787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010108358 + 1010108359.

It is an arithmetic number, because the mean of its divisors is an integer number (1010108359).

Almost surely, 2^2020216717 is an apocalyptic number.

It is an amenable number.

2020216717 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020216717 is an equidigital number, since it uses as much as digits as its factorization.

2020216717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2020216717 is about 44946.8209888085. The cubic root of 2020216717 is about 1264.1520700862.

Adding to 2020216717 its reverse (7176120202), we get a palindrome (9196336919).

The spelling of 2020216717 in words is "two billion, twenty million, two hundred sixteen thousand, seven hundred seventeen".