11181105800 has 36 divisors (see below), whose sum is σ = 25999548255. Its totient is φ = 4471844160.

The previous prime is 11181105799. The next prime is 11181105821. The reversal of 11181105800 is 850118111.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 9863270596 + 1317835204 = 99314^2 + 36302^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=74770.

It is a self number, because there is not a number n which added to its sum of digits gives 11181105800.

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 8 ways as a sum of consecutive naturals, for example, 1491662 + ... + 1499138.

Almost surely, 2^11181105800 is an apocalyptic number.

11181105800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11181105800 is an abundant number, since it is smaller than the sum of its proper divisors (14818442455).

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

11181105800 is an frugal number, since it uses more digits than its factorization.

11181105800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14970 (or 7484 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 26.

The spelling of 11181105800 in words is "eleven billion, one hundred eighty-one million, one hundred five thousand, eight hundred".