11550303400 has 48 divisors (see below), whose sum is σ = 26918438940. Its totient is φ = 4609113600.

The previous prime is 11550303389. The next prime is 11550303403. The reversal of 11550303400 is 430305511.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1259824036 + 10290479364 = 35494^2 + 101442^2 .

It is not an unprimeable number, because it can be changed into a prime (11550303403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15612 + ... + 152788.

Almost surely, 2^11550303400 is an apocalyptic number.

11550303400 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 11550303400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13459219470).

11550303400 is an abundant number, since it is smaller than the sum of its proper divisors (15368135540).

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

11550303400 is a wasteful number, since it uses less digits than its factorization.

11550303400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137614 (or 137605 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 11550303400 its reverse (430305511), we get a palindrome (11980608911).

The spelling of 11550303400 in words is "eleven billion, five hundred fifty million, three hundred three thousand, four hundred".