65746220713265 has 8 divisors (see below), whose sum is σ = 78895851209640. Its totient is φ = 52596719001472.

The previous prime is 65746220713247. The next prime is 65746220713273. The reversal of 65746220713265 is 56231702264756.

65746220713265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5817705408064 + 59928515305201 = 2411992^2 + 7741351^2 .

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 65746220713265 - 2¹⁰ = 65746220712241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65746220713265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31069430 + ... + 33117999.

It is an arithmetic number, because the mean of its divisors is an integer number (9861981401205).

Almost surely, 2^{65746220713265} is an apocalyptic number.

It is an amenable number.

65746220713265 is a deficient number, since it is larger than the sum of its proper divisors (13149630496375).

65746220713265 is a wasteful number, since it uses less digits than its factorization.

65746220713265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64392291.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 65746220713265 in words is "sixty-five trillion, seven hundred forty-six billion, two hundred twenty million, seven hundred thirteen thousand, two hundred sixty-five".