16662275320043 has 2 divisors, whose sum is σ = 16662275320044. Its totient is φ = 16662275320042.

The previous prime is 16662275320039. The next prime is 16662275320109. The reversal of 16662275320043 is 34002357226661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16662275320043 - 2² = 16662275320039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16662275320043.

It is not a weakly prime, because it can be changed into another prime (16662275320343) 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, 8331137660021 + 8331137660022.

It is an arithmetic number, because the mean of its divisors is an integer number (8331137660022).

Almost surely, 2^{16662275320043} is an apocalyptic number.

16662275320043 is a deficient number, since it is larger than the sum of its proper divisors (1).

16662275320043 is an equidigital number, since it uses as much as digits as its factorization.

16662275320043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 47.

The spelling of 16662275320043 in words is "sixteen trillion, six hundred sixty-two billion, two hundred seventy-five million, three hundred twenty thousand, forty-three".