11504504400 has 120 divisors (see below), whose sum is σ = 37477616160. Its totient is φ = 3015851520.

The previous prime is 11504504393. The next prime is 11504504437. The reversal of 11504504400 is 440540511.

It is a happy number.

11504504400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10447 + ... + 152046.

It is an arithmetic number, because the mean of its divisors is an integer number (312313468).

Almost surely, 2^11504504400 is an apocalyptic number.

11504504400 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 11504504400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18738808080).

11504504400 is an abundant number, since it is smaller than the sum of its proper divisors (25973111760).

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

11504504400 is a wasteful number, since it uses less digits than its factorization.

11504504400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162573 (or 162562 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 11504504400 in words is "eleven billion, five hundred four million, five hundred four thousand, four hundred".