11520055456 has 96 divisors (see below), whose sum is σ = 28082315520. Its totient is φ = 4529903616.

The previous prime is 11520055427. The next prime is 11520055489. The reversal of 11520055456 is 65455002511.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474460 + ... + 498148.

It is an arithmetic number, because the mean of its divisors is an integer number (292524120).

Almost surely, 2^11520055456 is an apocalyptic number.

11520055456 is a gapful number since it is divisible by the number (16) 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 11520055456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14041157760).

11520055456 is an abundant number, since it is smaller than the sum of its proper divisors (16562260064).

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

11520055456 is a wasteful number, since it uses less digits than its factorization.

11520055456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23886 (or 23878 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

Adding to 11520055456 its reverse (65455002511), we get a palindrome (76975057967).

The spelling of 11520055456 in words is "eleven billion, five hundred twenty million, fifty-five thousand, four hundred fifty-six".