16545724057503 has 12 divisors (see below), whose sum is σ = 24670326910528. Its totient is φ = 10674660682080.

The previous prime is 16545724057493. The next prime is 16545724057567. The reversal of 16545724057503 is 30575042754561.

It is a happy number.

16545724057503 is a `hidden beast` number, since 1 + 6 + 5 + 45 + 7 + 2 + 40 + 57 + 503 = 666.

It is not a de Polignac number, because 16545724057503 - 2²⁴ = 16545707280287 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 16545724057503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545724057003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29651834950 + ... + 29651835507.

Almost surely, 2^{16545724057503} is an apocalyptic number.

16545724057503 is a deficient number, since it is larger than the sum of its proper divisors (8124602853025).

16545724057503 is a wasteful number, since it uses less digits than its factorization.

16545724057503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59303670494 (or 59303670491 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 54.

The spelling of 16545724057503 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-four million, fifty-seven thousand, five hundred three".