1166193868 has 24 divisors (see below), whose sum is σ = 2349420192. Its totient is φ = 496147584.

The previous prime is 1166193859. The next prime is 1166193869. The reversal of 1166193868 is 8683916611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1166193869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148171 + ... + 155842.

It is an arithmetic number, because the mean of its divisors is an integer number (97892508).

Almost surely, 2^1166193868 is an apocalyptic number.

It is an amenable number.

1166193868 is an abundant number, since it is smaller than the sum of its proper divisors (1183226324).

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

1166193868 is a wasteful number, since it uses less digits than its factorization.

1166193868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304161 (or 304159 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 1166193868 is about 34149.5807880565. The cubic root of 1166193868 is about 1052.5843724712.

The spelling of 1166193868 in words is "one billion, one hundred sixty-six million, one hundred ninety-three thousand, eight hundred sixty-eight".