116561716517 has 2 divisors, whose sum is σ = 116561716518. Its totient is φ = 116561716516.

The previous prime is 116561716493. The next prime is 116561716529. The reversal of 116561716517 is 715617165611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93831329761 + 22730386756 = 306319^2 + 150766^2 .

It is a cyclic number.

It is not a de Polignac number, because 116561716517 - 2²⁶ = 116494607653 is a prime.

It is a super-2 number, since 2×116561716517² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116561716597) 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, 58280858258 + 58280858259.

It is an arithmetic number, because the mean of its divisors is an integer number (58280858259).

Almost surely, 2^116561716517 is an apocalyptic number.

It is an amenable number.

116561716517 is a deficient number, since it is larger than the sum of its proper divisors (1).

116561716517 is an equidigital number, since it uses as much as digits as its factorization.

116561716517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 47.

The spelling of 116561716517 in words is "one hundred sixteen billion, five hundred sixty-one million, seven hundred sixteen thousand, five hundred seventeen".