6565324020 has 48 divisors (see below), whose sum is σ = 18424855680. Its totient is φ = 1746758016.

The previous prime is 6565324019. The next prime is 6565324093. The reversal of 6565324020 is 204235656.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 98287 + ... + 150966.

It is an arithmetic number, because the mean of its divisors is an integer number (383851160).

Almost surely, 2^6565324020 is an apocalyptic number.

6565324020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6565324020 is an abundant number, since it is smaller than the sum of its proper divisors (11859531660).

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

6565324020 is a wasteful number, since it uses less digits than its factorization.

6565324020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249704 (or 249702 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 6565324020 is about 81026.6870851820. The cubic root of 6565324020 is about 1872.4866135348.

Adding to 6565324020 its reverse (204235656), we get a palindrome (6769559676).

The spelling of 6565324020 in words is "six billion, five hundred sixty-five million, three hundred twenty-four thousand, twenty".