1116645275808 has 144 divisors (see below), whose sum is σ = 3363058258560. Its totient is φ = 350236059648.

The previous prime is 1116645275803. The next prime is 1116645275827. The reversal of 1116645275808 is 8085725466111.

1116645275808 is a `hidden beast` number, since 1 + 1 + 1 + 6 + 6 + 4 + 52 + 7 + 580 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1116645275803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22237033 + ... + 22287191.

It is an arithmetic number, because the mean of its divisors is an integer number (23354571240).

Almost surely, 2^{1116645275808} is an apocalyptic number.

1116645275808 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 1116645275808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1681529129280).

1116645275808 is an abundant number, since it is smaller than the sum of its proper divisors (2246412982752).

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

1116645275808 is a wasteful number, since it uses less digits than its factorization.

1116645275808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54739 (or 54728 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 1116645275808 in words is "one trillion, one hundred sixteen billion, six hundred forty-five million, two hundred seventy-five thousand, eight hundred eight".