15996911616011 has 2 divisors, whose sum is σ = 15996911616012. Its totient is φ = 15996911616010.

The previous prime is 15996911615983. The next prime is 15996911616013. The reversal of 15996911616011 is 11061611969951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15996911616011 - 2¹⁰ = 15996911614987 is a prime.

Together with 15996911616013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15996911616013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7998455808005 + 7998455808006.

It is an arithmetic number, because the mean of its divisors is an integer number (7998455808006).

Almost surely, 2^{15996911616011} is an apocalyptic number.

15996911616011 is a deficient number, since it is larger than the sum of its proper divisors (1).

15996911616011 is an equidigital number, since it uses as much as digits as its factorization.

15996911616011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 787320, while the sum is 56.

The spelling of 15996911616011 in words is "fifteen trillion, nine hundred ninety-six billion, nine hundred eleven million, six hundred sixteen thousand, eleven".