6565544132 has 24 divisors (see below), whose sum is σ = 13327078464. Its totient is φ = 2771806752.

The previous prime is 6565544119. The next prime is 6565544149. The reversal of 6565544132 is 2314455656.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6565544132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1748003 + ... + 1751754.

It is an arithmetic number, because the mean of its divisors is an integer number (555294936).

Almost surely, 2^6565544132 is an apocalyptic number.

It is an amenable number.

6565544132 is an abundant number, since it is smaller than the sum of its proper divisors (6761534332).

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

6565544132 is a wasteful number, since it uses less digits than its factorization.

6565544132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499835 (or 3499833 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The square root of 6565544132 is about 81028.0453423381. The cubic root of 6565544132 is about 1872.5075392432.

Adding to 6565544132 its reverse (2314455656), we get a palindrome (8879999788).

The spelling of 6565544132 in words is "six billion, five hundred sixty-five million, five hundred forty-four thousand, one hundred thirty-two".