65139516583 has 4 divisors (see below), whose sum is σ = 67385706840. Its totient is φ = 62893326328.

The previous prime is 65139516581. The next prime is 65139516613. The reversal of 65139516583 is 38561593156.

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 65139516583 - 2¹ = 65139516581 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 65139516583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65139516581) 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, 1123095085 + ... + 1123095142.

It is an arithmetic number, because the mean of its divisors is an integer number (16846426710).

Almost surely, 2^65139516583 is an apocalyptic number.

65139516583 is a deficient number, since it is larger than the sum of its proper divisors (2246190257).

65139516583 is a wasteful number, since it uses less digits than its factorization.

65139516583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246190256.

The product of its digits is 2916000, while the sum is 52.

The spelling of 65139516583 in words is "sixty-five billion, one hundred thirty-nine million, five hundred sixteen thousand, five hundred eighty-three".