16545064203566 has 32 divisors (see below), whose sum is σ = 26414745483168. Its totient is φ = 7745237360640.

The previous prime is 16545064203553. The next prime is 16545064203571. The reversal of 16545064203566 is 66530246054561.

16545064203566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220531001 + ... + 220606011.

It is an arithmetic number, because the mean of its divisors is an integer number (825460796349).

Almost surely, 2^{16545064203566} is an apocalyptic number.

16545064203566 is a deficient number, since it is larger than the sum of its proper divisors (9869681279602).

16545064203566 is a wasteful number, since it uses less digits than its factorization.

16545064203566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108836.

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 16545064203566 in words is "sixteen trillion, five hundred forty-five billion, sixty-four million, two hundred three thousand, five hundred sixty-six".