11716215611 has 2 divisors, whose sum is σ = 11716215612. Its totient is φ = 11716215610.

The previous prime is 11716215569. The next prime is 11716215629. The reversal of 11716215611 is 11651261711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11716215611 is a prime.

It is not a weakly prime, because it can be changed into another prime (11716215631) 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, 5858107805 + 5858107806.

It is an arithmetic number, because the mean of its divisors is an integer number (5858107806).

Almost surely, 2^11716215611 is an apocalyptic number.

11716215611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11716215611 is an equidigital number, since it uses as much as digits as its factorization.

11716215611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 32.

The spelling of 11716215611 in words is "eleven billion, seven hundred sixteen million, two hundred fifteen thousand, six hundred eleven".