1113383537550 has 144 divisors (see below), whose sum is σ = 3017226961008. Its totient is φ = 294337152000.

The previous prime is 1113383537549. The next prime is 1113383537569. The reversal of 1113383537550 is 557353833111.

1113383537550 is a `hidden beast` number, since 1 + 1 + 1 + 3 + 38 + 35 + 37 + 550 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1113383537496 and 1113383537505.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 29394424 + ... + 29432276.

It is an arithmetic number, because the mean of its divisors is an integer number (20952965007).

Almost surely, 2^{1113383537550} is an apocalyptic number.

1113383537550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113383537550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508613480504).

1113383537550 is an abundant number, since it is smaller than the sum of its proper divisors (1903843423458).

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

1113383537550 is a wasteful number, since it uses less digits than its factorization.

1113383537550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38435 (or 38427 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 1113383537550 in words is "one trillion, one hundred thirteen billion, three hundred eighty-three million, five hundred thirty-seven thousand, five hundred fifty".