65206050517 has 8 divisors (see below), whose sum is σ = 66032829720. Its totient is φ = 64381363200.

The previous prime is 65206050463. The next prime is 65206050521. The reversal of 65206050517 is 71505060256.

It can be written as a sum of positive squares in 4 ways, for example, as 4805123761 + 60400926756 = 69319^2 + 245766^2 .

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 65206050517 - 2¹⁹ = 65205526229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65206051517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460188 + ... + 584965.

It is an arithmetic number, because the mean of its divisors is an integer number (8254103715).

Almost surely, 2^65206050517 is an apocalyptic number.

It is an amenable number.

65206050517 is a deficient number, since it is larger than the sum of its proper divisors (826779203).

65206050517 is a wasteful number, since it uses less digits than its factorization.

65206050517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045943.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 65206050517 in words is "sixty-five billion, two hundred six million, fifty thousand, five hundred seventeen".