1168227111168 has 216 divisors, whose sum is σ = 3761735967808. Its totient is φ = 359454246912.

The previous prime is 1168227111143. The next prime is 1168227111169. The reversal of 1168227111168 is 8611117228611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (216).

It is not an unprimeable number, because it can be changed into a prime (1168227111169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86421 + ... + 1530987.

Almost surely, 2^{1168227111168} is an apocalyptic number.

1168227111168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1168227111168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880867983904).

1168227111168 is an abundant number, since it is smaller than the sum of its proper divisors (2593508856640).

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

1168227111168 is an equidigital number, since it uses as much as digits as its factorization.

1168227111168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444611 (or 1444585 counting only the distinct ones).

The product of its digits is 64512, while the sum is 45.

The spelling of 1168227111168 in words is "one trillion, one hundred sixty-eight billion, two hundred twenty-seven million, one hundred eleven thousand, one hundred sixty-eight".