16545717665743 has 16 divisors (see below), whose sum is σ = 18916945706560. Its totient is φ = 14176378944000.

The previous prime is 16545717665707. The next prime is 16545717665761. The reversal of 16545717665743 is 34756671754561.

It is not a de Polignac number, because 16545717665743 - 2¹³ = 16545717657551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545717665443) 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 in 15 ways as a sum of consecutive naturals, for example, 347363653 + ... + 347411281.

It is an arithmetic number, because the mean of its divisors is an integer number (1182309106660).

Almost surely, 2^{16545717665743} is an apocalyptic number.

16545717665743 is a deficient number, since it is larger than the sum of its proper divisors (2371228040817).

16545717665743 is a wasteful number, since it uses less digits than its factorization.

16545717665743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66418.

The product of its digits is 444528000, while the sum is 67.

The spelling of 16545717665743 in words is "sixteen trillion, five hundred forty-five billion, seven hundred seventeen million, six hundred sixty-five thousand, seven hundred forty-three".