65818008313 has 4 divisors (see below), whose sum is σ = 65818600848. Its totient is φ = 65817415780.

The previous prime is 65818008307. The next prime is 65818008341. The reversal of 65818008313 is 31380081856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 65818008313 - 2¹³ = 65818000121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65818008313.

It is not an unprimeable number, because it can be changed into a prime (65818008353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74131 + ... + 370312.

It is an arithmetic number, because the mean of its divisors is an integer number (16454650212).

Almost surely, 2^65818008313 is an apocalyptic number.

It is an amenable number.

65818008313 is a deficient number, since it is larger than the sum of its proper divisors (592535).

65818008313 is a wasteful number, since it uses less digits than its factorization.

65818008313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592534.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 65818008313 in words is "sixty-five billion, eight hundred eighteen million, eight thousand, three hundred thirteen".