6520618696 has 32 divisors (see below), whose sum is σ = 12493232640. Its totient is φ = 3189167488.

The previous prime is 6520618679. The next prime is 6520618717. The reversal of 6520618696 is 6968160256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 896145 + ... + 903391.

It is an arithmetic number, because the mean of its divisors is an integer number (390413520).

Almost surely, 2^6520618696 is an apocalyptic number.

It is an amenable number.

6520618696 is a deficient number, since it is larger than the sum of its proper divisors (5972613944).

6520618696 is a wasteful number, since it uses less digits than its factorization.

6520618696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693 (or 9689 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 6520618696 is about 80750.3479620986. The cubic root of 6520618696 is about 1868.2268163921.

The spelling of 6520618696 in words is "six billion, five hundred twenty million, six hundred eighteen thousand, six hundred ninety-six".