15996911615983 has 2 divisors, whose sum is σ = 15996911615984. Its totient is φ = 15996911615982.

The previous prime is 15996911615921. The next prime is 15996911616011. The reversal of 15996911615983 is 38951611969951.

It is a strong prime.

It is an emirp because it is prime and its reverse (38951611969951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15996911615983 - 2¹³ = 15996911607791 is a prime.

It is a super-2 number, since 2×15996911615983² (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 (15996911645983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7998455807991 + 7998455807992.

It is an arithmetic number, because the mean of its divisors is an integer number (7998455807992).

Almost surely, 2^{15996911615983} is an apocalyptic number.

15996911615983 is a deficient number, since it is larger than the sum of its proper divisors (1).

15996911615983 is an equidigital number, since it uses as much as digits as its factorization.

15996911615983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141717600, while the sum is 73.

The spelling of 15996911615983 in words is "fifteen trillion, nine hundred ninety-six billion, nine hundred eleven million, six hundred fifteen thousand, nine hundred eighty-three".