16382172566 has 16 divisors (see below), whose sum is σ = 24981341568. Its totient is φ = 8055115200.

The previous prime is 16382172523. The next prime is 16382172581. The reversal of 16382172566 is 66527128361.

16382172566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16382172566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729851 + ... + 751961.

It is an arithmetic number, because the mean of its divisors is an integer number (1561333848).

Almost surely, 2^16382172566 is an apocalyptic number.

16382172566 is a deficient number, since it is larger than the sum of its proper divisors (8599169002).

16382172566 is a wasteful number, since it uses less digits than its factorization.

16382172566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28247.

The product of its digits is 725760, while the sum is 47.

The spelling of 16382172566 in words is "sixteen billion, three hundred eighty-two million, one hundred seventy-two thousand, five hundred sixty-six".