6520330256 has 40 divisors (see below), whose sum is σ = 13805303904. Its totient is φ = 2958690560.

The previous prime is 6520330253. The next prime is 6520330303.

6520330256 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (6520330253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71756 + ... + 134868.

Almost surely, 2^6520330256 is an apocalyptic number.

It is an amenable number.

6520330256 is an abundant number, since it is smaller than the sum of its proper divisors (7284973648).

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

6520330256 is a wasteful number, since it uses less digits than its factorization.

6520330256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63719 (or 63713 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 6520330256 is about 80748.5619438514. The cubic root of 6520330256 is about 1868.1992689403.

It can be divided in two parts, 65203 and 30256, that added together give a palindrome (95459).

The spelling of 6520330256 in words is "six billion, five hundred twenty million, three hundred thirty thousand, two hundred fifty-six".