11555404132220 has 36 divisors (see below), whose sum is σ = 26276578753320. Its totient is φ = 4266610755264.

The previous prime is 11555404132213. The next prime is 11555404132271. The reversal of 11555404132220 is 2223140455511.

11555404132220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1709375930 + ... + 1709382689.

It is an arithmetic number, because the mean of its divisors is an integer number (729904965370).

Almost surely, 2^{11555404132220} is an apocalyptic number.

11555404132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11555404132220 is an abundant number, since it is smaller than the sum of its proper divisors (14721174621100).

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

11555404132220 is a wasteful number, since it uses less digits than its factorization.

11555404132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418758654 (or 3418758639 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 11555404132220 its reverse (2223140455511), we get a palindrome (13778544587731).

The spelling of 11555404132220 in words is "eleven trillion, five hundred fifty-five billion, four hundred four million, one hundred thirty-two thousand, two hundred twenty".