16002662636249 has 2 divisors, whose sum is σ = 16002662636250. Its totient is φ = 16002662636248.

The previous prime is 16002662636171. The next prime is 16002662636251. The reversal of 16002662636249 is 94263626620061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10660832298649 + 5341830337600 = 3265093^2 + 2311240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16002662636249 is a prime.

It is a super-2 number, since 2×16002662636249² (a number of 27 digits) contains 22 as substring.

Together with 16002662636251, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16002662636249.

It is not a weakly prime, because it can be changed into another prime (16002662636749) 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, 8001331318124 + 8001331318125.

It is an arithmetic number, because the mean of its divisors is an integer number (8001331318125).

Almost surely, 2^{16002662636249} is an apocalyptic number.

It is an amenable number.

16002662636249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16002662636249 is an equidigital number, since it uses as much as digits as its factorization.

16002662636249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 16002662636249 in words is "sixteen trillion, two billion, six hundred sixty-two million, six hundred thirty-six thousand, two hundred forty-nine".