11255534453020 has 144 divisors (see below), whose sum is σ = 28209334654368. Its totient is φ = 3739131002880.

The previous prime is 11255534453011. The next prime is 11255534453027. The reversal of 11255534453020 is 2035443555211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11255534453027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2045992 + ... + 5166928.

It is an arithmetic number, because the mean of its divisors is an integer number (195898157322).

Almost surely, 2^{11255534453020} is an apocalyptic number.

11255534453020 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 11255534453020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14104667327184).

11255534453020 is an abundant number, since it is smaller than the sum of its proper divisors (16953800201348).

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

11255534453020 is a wasteful number, since it uses less digits than its factorization.

11255534453020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121080 (or 3121065 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 11255534453020 in words is "eleven trillion, two hundred fifty-five billion, five hundred thirty-four million, four hundred fifty-three thousand, twenty".