65013446461265 has 4 divisors (see below), whose sum is σ = 78016135753524. Its totient is φ = 52010757169008.

The previous prime is 65013446461247. The next prime is 65013446461331. The reversal of 65013446461265 is 56216464431056.

65013446461265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10977877370944 + 54035569090321 = 3313288^2 + 7350889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65013446461265 is a prime.

It is a super-2 number, since 2×65013446461265² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 6501344646122 + ... + 6501344646131.

It is an arithmetic number, because the mean of its divisors is an integer number (19504033938381).

Almost surely, 2^{65013446461265} is an apocalyptic number.

It is an amenable number.

65013446461265 is a deficient number, since it is larger than the sum of its proper divisors (13002689292259).

65013446461265 is a wasteful number, since it uses less digits than its factorization.

65013446461265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13002689292258.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 65013446461265 in words is "sixty-five trillion, thirteen billion, four hundred forty-six million, four hundred sixty-one thousand, two hundred sixty-five".