9816196111999 has 2 divisors, whose sum is σ = 9816196112000. Its totient is φ = 9816196111998.

The previous prime is 9816196111961. The next prime is 9816196112003. The reversal of 9816196111999 is 9991116916189.

It is a strong prime.

It is an emirp because it is prime and its reverse (9991116916189) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9816196111999 - 2¹⁵ = 9816196079231 is a prime.

It is a super-2 number, since 2×9816196111999² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9816196111399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4908098055999 + 4908098056000.

It is an arithmetic number, because the mean of its divisors is an integer number (4908098056000).

Almost surely, 2^{9816196111999} is an apocalyptic number.

9816196111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

9816196111999 is an equidigital number, since it uses as much as digits as its factorization.

9816196111999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17006112, while the sum is 70.

The spelling of 9816196111999 in words is "nine trillion, eight hundred sixteen billion, one hundred ninety-six million, one hundred eleven thousand, nine hundred ninety-nine".