65005111311 has 8 divisors (see below), whose sum is σ = 99055407744. Its totient is φ = 37145777880.

The previous prime is 65005111291. The next prime is 65005111373. The reversal of 65005111311 is 11311150056.

It is a happy number.

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

It is not a de Polignac number, because 65005111311 - 2¹¹ = 65005109263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005111811) 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, 1547740725 + ... + 1547740766.

It is an arithmetic number, because the mean of its divisors is an integer number (12381925968).

Almost surely, 2^65005111311 is an apocalyptic number.

65005111311 is a deficient number, since it is larger than the sum of its proper divisors (34050296433).

65005111311 is a wasteful number, since it uses less digits than its factorization.

65005111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095481501.

The product of its (nonzero) digits is 450, while the sum is 24.

Adding to 65005111311 its reverse (11311150056), we get a palindrome (76316261367).

The spelling of 65005111311 in words is "sixty-five billion, five million, one hundred eleven thousand, three hundred eleven".