1113565736844 has 144 divisors (see below), whose sum is σ = 3133998241920. Its totient is φ = 330549246720.

The previous prime is 1113565736821. The next prime is 1113565736849. The reversal of 1113565736844 is 4486375653111.

1113565736844 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 5 + 6 + 573 + 68 + 4 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (1113565736849) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4631992 + ... + 4866464.

It is an arithmetic number, because the mean of its divisors is an integer number (21763876680).

Almost surely, 2^{1113565736844} 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 1113565736844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1566999120960).

1113565736844 is an abundant number, since it is smaller than the sum of its proper divisors (2020432505076).

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

1113565736844 is a wasteful number, since it uses less digits than its factorization.

1113565736844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234740 (or 234735 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 1113565736844 in words is "one trillion, one hundred thirteen billion, five hundred sixty-five million, seven hundred thirty-six thousand, eight hundred forty-four".