8178816168 has 48 divisors (see below), whose sum is σ = 22179767220. Its totient is φ = 2722726656.

The previous prime is 8178816167. The next prime is 8178816187. The reversal of 8178816168 is 8616188718.

8178816168 is a `hidden beast` number, since 8 + 17 + 8 + 8 + 1 + 616 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5622300324 + 2556515844 = 74982^2 + 50562^2 .

It is not an unprimeable number, because it can be changed into a prime (8178816167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17821 + ... + 129132.

Almost surely, 2^8178816168 is an apocalyptic number.

It is an amenable number.

8178816168 is an abundant number, since it is smaller than the sum of its proper divisors (14000951052).

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

8178816168 is a wasteful number, since it uses less digits than its factorization.

8178816168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147738 (or 147731 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The square root of 8178816168 is about 90436.8075951379. The cubic root of 8178816168 is about 2014.7916807299.

The spelling of 8178816168 in words is "eight billion, one hundred seventy-eight million, eight hundred sixteen thousand, one hundred sixty-eight".