1111684168 has 72 divisors (see below), whose sum is σ = 2493339030. Its totient is φ = 463048320.

The previous prime is 1111684159. The next prime is 1111684177. The reversal of 1111684168 is 8614861111.

It is an interprime number because it is at equal distance from previous prime (1111684159) and next prime (1111684177).

It can be written as a sum of positive squares in only one way, i.e., 1098127044 + 13557124 = 33138^2 + 3682^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4226805 + ... + 4227067.

Almost surely, 2^1111684168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111684168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246669515).

1111684168 is an abundant number, since it is smaller than the sum of its proper divisors (1381654862).

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

1111684168 is an equidigital number, since it uses as much as digits as its factorization.

1111684168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 313 counting only the distinct ones).

The product of its digits is 9216, while the sum is 37.

The square root of 1111684168 is about 33341.9280786220. The cubic root of 1111684168 is about 1035.9222001474.

The spelling of 1111684168 in words is "one billion, one hundred eleven million, six hundred eighty-four thousand, one hundred sixty-eight".