9716120081 has 2 divisors, whose sum is σ = 9716120082. Its totient is φ = 9716120080.

The previous prime is 9716120033. The next prime is 9716120087. The reversal of 9716120081 is 1800216179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5086542400 + 4629577681 = 71320^2 + 68041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9716120081 is a prime.

It is a super-2 number, since 2×9716120081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9716120087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4858060040 + 4858060041.

It is an arithmetic number, because the mean of its divisors is an integer number (4858060041).

Almost surely, 2^9716120081 is an apocalyptic number.

It is an amenable number.

9716120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9716120081 is an equidigital number, since it uses as much as digits as its factorization.

9716120081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 9716120081 is about 98570.3813576878. The cubic root of 9716120081 is about 2133.8519848636.

The spelling of 9716120081 in words is "nine billion, seven hundred sixteen million, one hundred twenty thousand, eighty-one".