16682206217249 has 4 divisors (see below), whose sum is σ = 16835253980820. Its totient is φ = 16529158453680.

The previous prime is 16682206217231. The next prime is 16682206217293. The reversal of 16682206217249 is 94271260228661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8026653928225 + 8655552289024 = 2833135^2 + 2942032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16682206217249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16682206217194 and 16682206217203.

It is not an unprimeable number, because it can be changed into a prime (16682206217749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76523881622 + ... + 76523881839.

It is an arithmetic number, because the mean of its divisors is an integer number (4208813495205).

Almost surely, 2^{16682206217249} is an apocalyptic number.

It is an amenable number.

16682206217249 is a deficient number, since it is larger than the sum of its proper divisors (153047763571).

16682206217249 is a wasteful number, since it uses less digits than its factorization.

16682206217249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153047763570.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 16682206217249 in words is "sixteen trillion, six hundred eighty-two billion, two hundred six million, two hundred seventeen thousand, two hundred forty-nine".