11550130400 has 144 divisors (see below), whose sum is σ = 30169787760. Its totient is φ = 4304793600.

The previous prime is 11550130399. The next prime is 11550130433. The reversal of 11550130400 is 403105511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 920972 + ... + 933428.

It is an arithmetic number, because the mean of its divisors is an integer number (209512415).

Almost surely, 2^11550130400 is an apocalyptic number.

11550130400 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 11550130400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15084893880).

11550130400 is an abundant number, since it is smaller than the sum of its proper divisors (18619657360).

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

11550130400 is a wasteful number, since it uses less digits than its factorization.

11550130400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557 (or 12544 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 11550130400 its reverse (403105511), we get a palindrome (11953235911).

The spelling of 11550130400 in words is "eleven billion, five hundred fifty million, one hundred thirty thousand, four hundred".