11544005540 has 12 divisors (see below), whose sum is σ = 24242411676. Its totient is φ = 4617602208.

The previous prime is 11544005527. The next prime is 11544005563. The reversal of 11544005540 is 4550044511.

It can be written as a sum of positive squares in 2 ways, for example, as 8382867364 + 3161138176 = 91558^2 + 56224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288600119 + ... + 288600158.

It is an arithmetic number, because the mean of its divisors is an integer number (2020200973).

Almost surely, 2^11544005540 is an apocalyptic number.

11544005540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11544005540 is an abundant number, since it is smaller than the sum of its proper divisors (12698406136).

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

11544005540 is a wasteful number, since it uses less digits than its factorization.

11544005540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577200286 (or 577200284 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 11544005540 in words is "eleven billion, five hundred forty-four million, five thousand, five hundred forty".