65344340323 has 4 divisors (see below), whose sum is σ = 65676037680. Its totient is φ = 65012642968.

The previous prime is 65344340251. The next prime is 65344340329. The reversal of 65344340323 is 32304344356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65344340323 - 2⁹ = 65344339811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65344340329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165848383 + ... + 165848776.

It is an arithmetic number, because the mean of its divisors is an integer number (16419009420).

Almost surely, 2^65344340323 is an apocalyptic number.

65344340323 is a deficient number, since it is larger than the sum of its proper divisors (331697357).

65344340323 is a wasteful number, since it uses less digits than its factorization.

65344340323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331697356.

The product of its (nonzero) digits is 311040, while the sum is 37.

Adding to 65344340323 its reverse (32304344356), we get a palindrome (97648684679).

The spelling of 65344340323 in words is "sixty-five billion, three hundred forty-four million, three hundred forty thousand, three hundred twenty-three".