16662375694859 has 2 divisors, whose sum is σ = 16662375694860. Its totient is φ = 16662375694858.

The previous prime is 16662375694837. The next prime is 16662375694883. The reversal of 16662375694859 is 95849657326661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16662375694859 - 2¹⁶ = 16662375629323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16662375694859.

It is not a weakly prime, because it can be changed into another prime (16662375694819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331187847429 + 8331187847430.

It is an arithmetic number, because the mean of its divisors is an integer number (8331187847430).

Almost surely, 2^{16662375694859} is an apocalyptic number.

16662375694859 is a deficient number, since it is larger than the sum of its proper divisors (1).

16662375694859 is an equidigital number, since it uses as much as digits as its factorization.

16662375694859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3527193600, while the sum is 77.

The spelling of 16662375694859 in words is "sixteen trillion, six hundred sixty-two billion, three hundred seventy-five million, six hundred ninety-four thousand, eight hundred fifty-nine".