11550251451320 has 128 divisors (see below), whose sum is σ = 27894875904000. Its totient is φ = 4288756033536.

The previous prime is 11550251451311. The next prime is 11550251451329. The reversal of 11550251451320 is 2315415205511.

It is an interprime number because it is at equal distance from previous prime (11550251451311) and next prime (11550251451329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550251451329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33636737 + ... + 33978383.

It is an arithmetic number, because the mean of its divisors is an integer number (217928718000).

Almost surely, 2^{11550251451320} is an apocalyptic number.

11550251451320 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 11550251451320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13947437952000).

11550251451320 is an abundant number, since it is smaller than the sum of its proper divisors (16344624452680).

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

11550251451320 is a wasteful number, since it uses less digits than its factorization.

11550251451320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342357 (or 342353 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

Adding to 11550251451320 its reverse (2315415205511), we get a palindrome (13865666656831).

The spelling of 11550251451320 in words is "eleven trillion, five hundred fifty billion, two hundred fifty-one million, four hundred fifty-one thousand, three hundred twenty".