8168118618 has 32 divisors (see below), whose sum is σ = 17869962240. Its totient is φ = 2468435760.

The previous prime is 8168118611. The next prime is 8168118619.

8168118618 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8168118611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144388 + ... + 192831.

It is an arithmetic number, because the mean of its divisors is an integer number (558436320).

Almost surely, 2^8168118618 is an apocalyptic number.

8168118618 is an abundant number, since it is smaller than the sum of its proper divisors (9701843622).

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

8168118618 is a wasteful number, since it uses less digits than its factorization.

8168118618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337602.

The product of its digits is 147456, while the sum is 48.

The square root of 8168118618 is about 90377.6444592356. The cubic root of 8168118618 is about 2013.9128763451.

The spelling of 8168118618 in words is "eight billion, one hundred sixty-eight million, one hundred eighteen thousand, six hundred eighteen".