16500133066709 has 2 divisors, whose sum is σ = 16500133066710. Its totient is φ = 16500133066708.

The previous prime is 16500133066609. The next prime is 16500133066727. The reversal of 16500133066709 is 90766033100561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10720811290225 + 5779321776484 = 3274265^2 + 2404022^2 .

It is a cyclic number.

It is not a de Polignac number, because 16500133066709 - 2⁴⁰ = 15400621438933 is a prime.

It is a super-3 number, since 3×16500133066709³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16500133066609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250066533354 + 8250066533355.

It is an arithmetic number, because the mean of its divisors is an integer number (8250066533355).

Almost surely, 2^{16500133066709} is an apocalyptic number.

It is an amenable number.

16500133066709 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500133066709 is an equidigital number, since it uses as much as digits as its factorization.

16500133066709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 612360, while the sum is 47.

The spelling of 16500133066709 in words is "sixteen trillion, five hundred billion, one hundred thirty-three million, sixty-six thousand, seven hundred nine".