6565120112 has 40 divisors (see below), whose sum is σ = 13476699936. Its totient is φ = 3087507456.

The previous prime is 6565120109. The next prime is 6565120127. The reversal of 6565120112 is 2110215656.

It is a happy number.

It is a congruent 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, 478208 + ... + 491744.

Almost surely, 2^6565120112 is an apocalyptic number.

It is an amenable number.

6565120112 is an abundant number, since it is smaller than the sum of its proper divisors (6911579824).

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

6565120112 is a wasteful number, since it uses less digits than its factorization.

6565120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15345 (or 15339 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 6565120112 is about 81025.4287986185. The cubic root of 6565120112 is about 1872.4672278984.

Adding to 6565120112 its reverse (2110215656), we get a palindrome (8675335768).

The spelling of 6565120112 in words is "six billion, five hundred sixty-five million, one hundred twenty thousand, one hundred twelve".