16686425304 has 128 divisors (see below), whose sum is σ = 49496832000. Its totient is φ = 5197046400.

The previous prime is 16686425251. The next prime is 16686425311. The reversal of 16686425304 is 40352468661.

16686425304 is a `hidden beast` number, since 16 + 68 + 6 + 42 + 530 + 4 = 666.

16686425304 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 16686425304.

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 31 ways as a sum of consecutive naturals, for example, 151219 + ... + 237149.

It is an arithmetic number, because the mean of its divisors is an integer number (386694000).

Almost surely, 2^16686425304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16686425304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24748416000).

16686425304 is an abundant number, since it is smaller than the sum of its proper divisors (32810406696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16686425304 is a wasteful number, since it uses less digits than its factorization.

16686425304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86006 (or 85996 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 16686425304 in words is "sixteen billion, six hundred eighty-six million, four hundred twenty-five thousand, three hundred four".