16682206217293 has 2 divisors, whose sum is σ = 16682206217294. Its totient is φ = 16682206217292.

The previous prime is 16682206217231. The next prime is 16682206217357. The reversal of 16682206217293 is 39271260228661.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15458091895684 + 1224114321609 = 3931678^2 + 1106397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16682206217293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16682206212293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8341103108646 + 8341103108647.

It is an arithmetic number, because the mean of its divisors is an integer number (8341103108647).

Almost surely, 2^{16682206217293} is an apocalyptic number.

It is an amenable number.

16682206217293 is a deficient number, since it is larger than the sum of its proper divisors (1).

16682206217293 is an equidigital number, since it uses as much as digits as its factorization.

16682206217293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 16682206217293 in words is "sixteen trillion, six hundred eighty-two billion, two hundred six million, two hundred seventeen thousand, two hundred ninety-three".