65160866041 has 4 divisors (see below), whose sum is σ = 65302213284. Its totient is φ = 65019518800.

The previous prime is 65160865999. The next prime is 65160866047. The reversal of 65160866041 is 14066806156.

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 17285675625 + 47875190416 = 131475^2 + 218804^2 .

It is a cyclic number.

It is not a de Polignac number, because 65160866041 - 2²¹ = 65158768889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65160866047) by changing a digit.

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, 70672930 + ... + 70673851.

It is an arithmetic number, because the mean of its divisors is an integer number (16325553321).

Almost surely, 2^65160866041 is an apocalyptic number.

It is an amenable number.

65160866041 is a deficient number, since it is larger than the sum of its proper divisors (141347243).

65160866041 is a wasteful number, since it uses less digits than its factorization.

65160866041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141347242.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 65160866041 in words is "sixty-five billion, one hundred sixty million, eight hundred sixty-six thousand, forty-one".