1109344421600 has 144 divisors (see below), whose sum is σ = 2769680729088. Its totient is φ = 433688471040.

The previous prime is 1109344421567. The next prime is 1109344421617. The reversal of 1109344421600 is 61244439011.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 27314909 + ... + 27355491.

It is an arithmetic number, because the mean of its divisors is an integer number (19233893952).

Almost surely, 2^{1109344421600} is an apocalyptic number.

1109344421600 is a gapful number since it is divisible by the number (10) 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 1109344421600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384840364544).

1109344421600 is an abundant number, since it is smaller than the sum of its proper divisors (1660336307488).

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

1109344421600 is a wasteful number, since it uses less digits than its factorization.

1109344421600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41377 (or 41364 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 1109344421600 in words is "one trillion, one hundred nine billion, three hundred forty-four million, four hundred twenty-one thousand, six hundred".