16545720173012 has 48 divisors (see below), whose sum is σ = 30956112859392. Its totient is φ = 7710912599040.

The previous prime is 16545720173009. The next prime is 16545720173033. The reversal of 16545720173012 is 21037102754561.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 458453 + ... + 5770755.

It is an arithmetic number, because the mean of its divisors is an integer number (644919017904).

Almost surely, 2^{16545720173012} is an apocalyptic number.

It is an amenable number.

16545720173012 is a deficient number, since it is larger than the sum of its proper divisors (14410392686380).

16545720173012 is a wasteful number, since it uses less digits than its factorization.

16545720173012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312768 (or 5312766 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 16545720173012 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty million, one hundred seventy-three thousand, twelve".