65105271065 has 8 divisors (see below), whose sum is σ = 78256756800. Its totient is φ = 51997262512.

The previous prime is 65105271041. The next prime is 65105271067. The reversal of 65105271065 is 56017250156.

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 65105271065 - 2⁸ = 65105270809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65105271067) by changing a digit.

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, 10865999 + ... + 10871988.

It is an arithmetic number, because the mean of its divisors is an integer number (9782094600).

Almost surely, 2^65105271065 is an apocalyptic number.

It is an amenable number.

65105271065 is a deficient number, since it is larger than the sum of its proper divisors (13151485735).

65105271065 is a wasteful number, since it uses less digits than its factorization.

65105271065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21738591.

The product of its (nonzero) digits is 63000, while the sum is 38.

The spelling of 65105271065 in words is "sixty-five billion, one hundred five million, two hundred seventy-one thousand, sixty-five".