6544082320 has 20 divisors (see below), whose sum is σ = 15214991580. Its totient is φ = 2617632896.

The previous prime is 6544082273. The next prime is 6544082333. The reversal of 6544082320 is 232804456.

It can be written as a sum of positive squares in 2 ways, for example, as 3570779536 + 2973302784 = 59756^2 + 54528^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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 3 ways as a sum of consecutive naturals, for example, 40900435 + ... + 40900594.

It is an arithmetic number, because the mean of its divisors is an integer number (760749579).

Almost surely, 2^6544082320 is an apocalyptic number.

It is an amenable number.

6544082320 is an abundant number, since it is smaller than the sum of its proper divisors (8670909260).

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

6544082320 is a wasteful number, since it uses less digits than its factorization.

6544082320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81801042 (or 81801036 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 6544082320 is about 80895.5024707802. The cubic root of 6544082320 is about 1870.4649934620.

Adding to 6544082320 its reverse (232804456), we get a palindrome (6776886776).

The spelling of 6544082320 in words is "six billion, five hundred forty-four million, eighty-two thousand, three hundred twenty".