1168661868 has 48 divisors (see below), whose sum is σ = 3047345280. Its totient is φ = 345500800.

The previous prime is 1168661867. The next prime is 1168661903. The reversal of 1168661868 is 8681668611.

It is a self number, because there is not a number n which added to its sum of digits gives 1168661868.

It is not an unprimeable number, because it can be changed into a prime (1168661867) 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, 102558 + ... + 113381.

It is an arithmetic number, because the mean of its divisors is an integer number (63486360).

Almost surely, 2^1168661868 is an apocalyptic number.

It is an amenable number.

1168661868 is an abundant number, since it is smaller than the sum of its proper divisors (1878683412).

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

1168661868 is a wasteful number, since it uses less digits than its factorization.

1168661868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215998 (or 215996 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 1168661868 is about 34185.6968336174. The cubic root of 1168661868 is about 1053.3263725528.

The spelling of 1168661868 in words is "one billion, one hundred sixty-eight million, six hundred sixty-one thousand, eight hundred sixty-eight".