16686666703363 has 2 divisors, whose sum is σ = 16686666703364. Its totient is φ = 16686666703362.

The previous prime is 16686666703337. The next prime is 16686666703409. The reversal of 16686666703363 is 36330766668661.

16686666703363 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 is a cyclic number.

It is not a de Polignac number, because 16686666703363 - 2⁹ = 16686666702851 is a prime.

It is not a weakly prime, because it can be changed into another prime (16686666703313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8343333351681 + 8343333351682.

It is an arithmetic number, because the mean of its divisors is an integer number (8343333351682).

Almost surely, 2^{16686666703363} is an apocalyptic number.

16686666703363 is a deficient number, since it is larger than the sum of its proper divisors (1).

16686666703363 is an equidigital number, since it uses as much as digits as its factorization.

16686666703363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423263232, while the sum is 67.

The spelling of 16686666703363 in words is "sixteen trillion, six hundred eighty-six billion, six hundred sixty-six million, seven hundred three thousand, three hundred sixty-three".