16851683304 has 24 divisors (see below), whose sum is σ = 45639975810. Its totient is φ = 5617227744.

The previous prime is 16851683239. The next prime is 16851683311. The reversal of 16851683304 is 40338615861.

It can be written as a sum of positive squares in only one way, i.e., 15612502500 + 1239180804 = 124950^2 + 35202^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16851683304.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117025507 + ... + 117025650.

Almost surely, 2^16851683304 is an apocalyptic number.

It is an amenable number.

16851683304 is an abundant number, since it is smaller than the sum of its proper divisors (28788292506).

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

16851683304 is a wasteful number, since it uses less digits than its factorization.

16851683304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234051169 (or 234051162 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 16851683304 in words is "sixteen billion, eight hundred fifty-one million, six hundred eighty-three thousand, three hundred four".