16771228168 has 8 divisors (see below), whose sum is σ = 31446052830. Its totient is φ = 8385614080.

The previous prime is 16771228147. The next prime is 16771228181. The reversal of 16771228168 is 86182217761.

It can be written as a sum of positive squares in only one way, i.e., 15460932964 + 1310295204 = 124342^2 + 36198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048201753 + ... + 1048201768.

Almost surely, 2^16771228168 is an apocalyptic number.

It is an amenable number.

16771228168 is a deficient number, since it is larger than the sum of its proper divisors (14674824662).

16771228168 is a wasteful number, since it uses less digits than its factorization.

16771228168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096403527 (or 2096403523 counting only the distinct ones).

The product of its digits is 451584, while the sum is 49.

The spelling of 16771228168 in words is "sixteen billion, seven hundred seventy-one million, two hundred twenty-eight thousand, one hundred sixty-eight".