65065505105 has 8 divisors (see below), whose sum is σ = 80188838952. Its totient is φ = 50645582208.

The previous prime is 65065505077. The next prime is 65065505117. The reversal of 65065505105 is 50150556056.

It can be written as a sum of positive squares in 4 ways, for example, as 26166621121 + 38898883984 = 161761^2 + 197228^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65065505105 - 2⁶ = 65065505041 is a prime.

It is a super-2 number, since 2×65065505105² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175852532 + ... + 175852901.

It is an arithmetic number, because the mean of its divisors is an integer number (10023604869).

Almost surely, 2^65065505105 is an apocalyptic number.

It is an amenable number.

65065505105 is a deficient number, since it is larger than the sum of its proper divisors (15123333847).

65065505105 is a wasteful number, since it uses less digits than its factorization.

65065505105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351705475.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 65065505105 in words is "sixty-five billion, sixty-five million, five hundred five thousand, one hundred five".