16500066564859 has 2 divisors, whose sum is σ = 16500066564860. Its totient is φ = 16500066564858.

The previous prime is 16500066564829. The next prime is 16500066564881. The reversal of 16500066564859 is 95846566000561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16500066564859 - 2¹⁷ = 16500066433787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16500066564797 and 16500066564806.

It is not a weakly prime, because it can be changed into another prime (16500066564809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8250033282429 + 8250033282430.

It is an arithmetic number, because the mean of its divisors is an integer number (8250033282430).

Almost surely, 2^{16500066564859} is an apocalyptic number.

16500066564859 is a deficient number, since it is larger than the sum of its proper divisors (1).

16500066564859 is an equidigital number, since it uses as much as digits as its factorization.

16500066564859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656000, while the sum is 61.

The spelling of 16500066564859 in words is "sixteen trillion, five hundred billion, sixty-six million, five hundred sixty-four thousand, eight hundred fifty-nine".