2116716510197 has 2 divisors, whose sum is σ = 2116716510198. Its totient is φ = 2116716510196.

The previous prime is 2116716510193. The next prime is 2116716510203. The reversal of 2116716510197 is 7910156176112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1351513202116 + 765203308081 = 1162546^2 + 874759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116716510197 - 2² = 2116716510193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116716510193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058358255098 + 1058358255099.

It is an arithmetic number, because the mean of its divisors is an integer number (1058358255099).

Almost surely, 2^{2116716510197} is an apocalyptic number.

It is an amenable number.

2116716510197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116716510197 is an equidigital number, since it uses as much as digits as its factorization.

2116716510197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 47.

The spelling of 2116716510197 in words is "two trillion, one hundred sixteen billion, seven hundred sixteen million, five hundred ten thousand, one hundred ninety-seven".