6520120336 has 10 divisors (see below), whose sum is σ = 12632733182. Its totient is φ = 3260060160.

The previous prime is 6520120333. The next prime is 6520120337. The reversal of 6520120336 is 6330210256.

It can be written as a sum of positive squares in only one way, i.e., 6034182400 + 485937936 = 77680^2 + 22044^2 .

It is not an unprimeable number, because it can be changed into a prime (6520120333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203753745 + ... + 203753776.

Almost surely, 2^6520120336 is an apocalyptic number.

It is an amenable number.

6520120336 is a deficient number, since it is larger than the sum of its proper divisors (6112612846).

6520120336 is a wasteful number, since it uses less digits than its factorization.

6520120336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407507529 (or 407507523 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 6520120336 is about 80747.2620959993. The cubic root of 6520120336 is about 1868.1792200274.

The spelling of 6520120336 in words is "six billion, five hundred twenty million, one hundred twenty thousand, three hundred thirty-six".