16653316249 has 2 divisors, whose sum is σ = 16653316250. Its totient is φ = 16653316248.

The previous prime is 16653316247. The next prime is 16653316279. The reversal of 16653316249 is 94261335661.

16653316249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14657460624 + 1995855625 = 121068^2 + 44675^2 .

It is a cyclic number.

It is not a de Polignac number, because 16653316249 - 2¹ = 16653316247 is a prime.

Together with 16653316247, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 16653316199 and 16653316208.

It is not a weakly prime, because it can be changed into another prime (16653316247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8326658124 + 8326658125.

It is an arithmetic number, because the mean of its divisors is an integer number (8326658125).

Almost surely, 2^16653316249 is an apocalyptic number.

It is an amenable number.

16653316249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16653316249 is an equidigital number, since it uses as much as digits as its factorization.

16653316249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 46.

The spelling of 16653316249 in words is "sixteen billion, six hundred fifty-three million, three hundred sixteen thousand, two hundred forty-nine".