16720541504759 has 2 divisors, whose sum is σ = 16720541504760. Its totient is φ = 16720541504758.

The previous prime is 16720541504741. The next prime is 16720541504827. The reversal of 16720541504759 is 95740514502761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16720541504759 - 2¹⁶ = 16720541439223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16720541504159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8360270752379 + 8360270752380.

It is an arithmetic number, because the mean of its divisors is an integer number (8360270752380).

Almost surely, 2^{16720541504759} is an apocalyptic number.

16720541504759 is a deficient number, since it is larger than the sum of its proper divisors (1).

16720541504759 is an equidigital number, since it uses as much as digits as its factorization.

16720541504759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 16720541504759 in words is "sixteen trillion, seven hundred twenty billion, five hundred forty-one million, five hundred four thousand, seven hundred fifty-nine".