11544554550 has 48 divisors (see below), whose sum is σ = 28637109072. Its totient is φ = 3077836800.

The previous prime is 11544554543. The next prime is 11544554551. The reversal of 11544554550 is 5545544511.

11544554550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11544554499 and 11544554508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11544554551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1113390 + ... + 1123710.

It is an arithmetic number, because the mean of its divisors is an integer number (596606439).

Almost surely, 2^11544554550 is an apocalyptic number.

11544554550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11544554550 is an abundant number, since it is smaller than the sum of its proper divisors (17092554522).

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

11544554550 is a wasteful number, since it uses less digits than its factorization.

11544554550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17793 (or 17788 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 39.

The spelling of 11544554550 in words is "eleven billion, five hundred forty-four million, five hundred fifty-four thousand, five hundred fifty".