16504324168 has 16 divisors (see below), whose sum is σ = 30949004160. Its totient is φ = 8251256400.

The previous prime is 16504324159. The next prime is 16504324181. The reversal of 16504324168 is 86142340561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16504324168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32368 + ... + 184543.

It is an arithmetic number, because the mean of its divisors is an integer number (1934312760).

Almost surely, 2^16504324168 is an apocalyptic number.

It is an amenable number.

16504324168 is a deficient number, since it is larger than the sum of its proper divisors (14444679992).

16504324168 is a wasteful number, since it uses less digits than its factorization.

16504324168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226428 (or 226424 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 16504324168 in words is "sixteen billion, five hundred four million, three hundred twenty-four thousand, one hundred sixty-eight".