6520330020 has 96 divisors (see below), whose sum is σ = 18379468800. Its totient is φ = 1727132544.

The previous prime is 6520330013. The next prime is 6520330021. The reversal of 6520330020 is 200330256.

It is not an unprimeable number, because it can be changed into a prime (6520330021) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 8822811 + ... + 8823549.

It is an arithmetic number, because the mean of its divisors is an integer number (191452800).

Almost surely, 2^6520330020 is an apocalyptic number.

6520330020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6520330020 is an abundant number, since it is smaller than the sum of its proper divisors (11859138780).

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

6520330020 is a wasteful number, since it uses less digits than its factorization.

6520330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6520330020 is about 80748.5604825250. The cubic root of 6520330020 is about 1868.1992464008.

Adding to 6520330020 its reverse (200330256), we get a palindrome (6720660276).

The spelling of 6520330020 in words is "six billion, five hundred twenty million, three hundred thirty thousand, twenty".