8642160265 has 4 divisors (see below), whose sum is σ = 10370592324. Its totient is φ = 6913728208.

The previous prime is 8642160251. The next prime is 8642160269. The reversal of 8642160265 is 5620612468.

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 6554035849 + 2088124416 = 80957^2 + 45696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8642160265 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8642160269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864216022 + ... + 864216031.

It is an arithmetic number, because the mean of its divisors is an integer number (2592648081).

Almost surely, 2^8642160265 is an apocalyptic number.

It is an amenable number.

8642160265 is a deficient number, since it is larger than the sum of its proper divisors (1728432059).

8642160265 is a wasteful number, since it uses less digits than its factorization.

8642160265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728432058.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 8642160265 is about 92963.2199582179. The cubic root of 8642160265 is about 2052.1421403343.

The spelling of 8642160265 in words is "eight billion, six hundred forty-two million, one hundred sixty thousand, two hundred sixty-five".