6565430616 has 16 divisors (see below), whose sum is σ = 16413576600. Its totient is φ = 2188476864.

The previous prime is 6565430591. The next prime is 6565430647. The reversal of 6565430616 is 6160345656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136779781 + ... + 136779828.

Almost surely, 2^6565430616 is an apocalyptic number.

It is an amenable number.

6565430616 is an abundant number, since it is smaller than the sum of its proper divisors (9848145984).

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

6565430616 is a wasteful number, since it uses less digits than its factorization.

6565430616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273559618 (or 273559614 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The square root of 6565430616 is about 81027.3448657921. The cubic root of 6565430616 is about 1872.4967475105.

The spelling of 6565430616 in words is "six billion, five hundred sixty-five million, four hundred thirty thousand, six hundred sixteen".