12116664823 has 2 divisors, whose sum is σ = 12116664824. Its totient is φ = 12116664822.

The previous prime is 12116664817. The next prime is 12116664883. The reversal of 12116664823 is 32846661121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12116664823 - 2¹³ = 12116656631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12116664803) 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, 6058332411 + 6058332412.

It is an arithmetic number, because the mean of its divisors is an integer number (6058332412).

Almost surely, 2^12116664823 is an apocalyptic number.

12116664823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12116664823 is an equidigital number, since it uses as much as digits as its factorization.

12116664823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The spelling of 12116664823 in words is "twelve billion, one hundred sixteen million, six hundred sixty-four thousand, eight hundred twenty-three".