16066870466693 has 2 divisors, whose sum is σ = 16066870466694. Its totient is φ = 16066870466692.

The previous prime is 16066870466687. The next prime is 16066870466783. The reversal of 16066870466693 is 39666407866061.

16066870466693 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 can be written as a sum of positive squares in only one way, i.e., 15806405178529 + 260465288164 = 3975727^2 + 510358^2 .

It is an emirp because it is prime and its reverse (39666407866061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16066870466693 - 2¹² = 16066870462597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16066870466393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8033435233346 + 8033435233347.

It is an arithmetic number, because the mean of its divisors is an integer number (8033435233347).

Almost surely, 2^{16066870466693} is an apocalyptic number.

It is an amenable number.

16066870466693 is a deficient number, since it is larger than the sum of its proper divisors (1).

16066870466693 is an equidigital number, since it uses as much as digits as its factorization.

16066870466693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282175488, while the sum is 68.

The spelling of 16066870466693 in words is "sixteen trillion, sixty-six billion, eight hundred seventy million, four hundred sixty-six thousand, six hundred ninety-three".