16811670928 has 20 divisors (see below), whose sum is σ = 35078198428. Its totient is φ = 7759232640.

The previous prime is 16811670857. The next prime is 16811670929. The reversal of 16811670928 is 82907611861.

It can be written as a sum of positive squares in 2 ways, for example, as 6459015424 + 10352655504 = 80368^2 + 101748^2 .

It is not an unprimeable number, because it can be changed into a prime (16811670929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40412463 + ... + 40412878.

Almost surely, 2^16811670928 is an apocalyptic number.

It is an amenable number.

16811670928 is an abundant number, since it is smaller than the sum of its proper divisors (18266527500).

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

16811670928 is a wasteful number, since it uses less digits than its factorization.

16811670928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80825362 (or 80825356 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 49.

The spelling of 16811670928 in words is "sixteen billion, eight hundred eleven million, six hundred seventy thousand, nine hundred twenty-eight".