12699660011 has 2 divisors, whose sum is σ = 12699660012. Its totient is φ = 12699660010.

The previous prime is 12699660007. The next prime is 12699660047. The reversal of 12699660011 is 11006699621.

It is a weak prime.

It is an emirp because it is prime and its reverse (11006699621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12699660011 - 2² = 12699660007 is a prime.

It is a super-2 number, since 2×12699660011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12699660091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349830005 + 6349830006.

It is an arithmetic number, because the mean of its divisors is an integer number (6349830006).

Almost surely, 2^12699660011 is an apocalyptic number.

12699660011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12699660011 is an equidigital number, since it uses as much as digits as its factorization.

12699660011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 12699660011 in words is "twelve billion, six hundred ninety-nine million, six hundred sixty thousand, eleven".