16676446988869 has 2 divisors, whose sum is σ = 16676446988870. Its totient is φ = 16676446988868.

The previous prime is 16676446988867. The next prime is 16676446988899. The reversal of 16676446988869 is 96888964467661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14922575850625 + 1753871138244 = 3862975^2 + 1324338^2 .

It is a cyclic number.

It is not a de Polignac number, because 16676446988869 - 2¹ = 16676446988867 is a prime.

It is a super-2 number, since 2×16676446988869² (a number of 27 digits) contains 22 as substring.

Together with 16676446988867, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16676446988869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16676446988867) 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, 8338223494434 + 8338223494435.

It is an arithmetic number, because the mean of its divisors is an integer number (8338223494435).

Almost surely, 2^{16676446988869} is an apocalyptic number.

It is an amenable number.

16676446988869 is a deficient number, since it is larger than the sum of its proper divisors (1).

16676446988869 is an equidigital number, since it uses as much as digits as its factorization.

16676446988869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36118462464, while the sum is 88.

The spelling of 16676446988869 in words is "sixteen trillion, six hundred seventy-six billion, four hundred forty-six million, nine hundred eighty-eight thousand, eight hundred sixty-nine".