16531707207799 has 6 divisors (see below), whose sum is σ = 19230761445864. Its totient is φ = 14170034749500.

The previous prime is 16531707207791. The next prime is 16531707207803. The reversal of 16531707207799 is 99770270713561.

It is not a de Polignac number, because 16531707207799 - 2³ = 16531707207791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16531707207799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16531707207791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168690889827 + ... + 168690889924.

It is an arithmetic number, because the mean of its divisors is an integer number (3205126907644).

Almost surely, 2^{16531707207799} is an apocalyptic number.

16531707207799 is a deficient number, since it is larger than the sum of its proper divisors (2699054238065).

16531707207799 is an equidigital number, since it uses as much as digits as its factorization.

16531707207799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337381779765 (or 337381779758 counting only the distinct ones).

The product of its (nonzero) digits is 35006580, while the sum is 64.

The spelling of 16531707207799 in words is "sixteen trillion, five hundred thirty-one billion, seven hundred seven million, two hundred seven thousand, seven hundred ninety-nine".