65525345565 has 16 divisors (see below), whose sum is σ = 104925888000. Its totient is φ = 34918405952.

The previous prime is 65525345551. The next prime is 65525345569. The reversal of 65525345565 is 56554352556.

It is a cyclic number.

It is not a de Polignac number, because 65525345565 - 2⁵ = 65525345533 is a prime.

It is a super-2 number, since 2×65525345565² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65525345569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758765 + ... + 1795634.

It is an arithmetic number, because the mean of its divisors is an integer number (6557868000).

Almost surely, 2^65525345565 is an apocalyptic number.

It is an amenable number.

65525345565 is a deficient number, since it is larger than the sum of its proper divisors (39400542435).

65525345565 is a wasteful number, since it uses less digits than its factorization.

65525345565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555636.

The product of its digits is 13500000, while the sum is 51.

The spelling of 65525345565 in words is "sixty-five billion, five hundred twenty-five million, three hundred forty-five thousand, five hundred sixty-five".