11554434455540 has 24 divisors (see below), whose sum is σ = 24282877302432. Its totient is φ = 4618237602080.

The previous prime is 11554434455491. The next prime is 11554434455567. The reversal of 11554434455540 is 4555443445511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220984466 + ... + 221036745.

It is an arithmetic number, because the mean of its divisors is an integer number (1011786554268).

Almost surely, 2^{11554434455540} is an apocalyptic number.

11554434455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11554434455540 is an abundant number, since it is smaller than the sum of its proper divisors (12728442846892).

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

11554434455540 is a wasteful number, since it uses less digits than its factorization.

11554434455540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442022527 (or 442022525 counting only the distinct ones).

The product of its (nonzero) digits is 9600000, while the sum is 50.

The spelling of 11554434455540 in words is "eleven trillion, five hundred fifty-four billion, four hundred thirty-four million, four hundred fifty-five thousand, five hundred forty".