2560867165 has 8 divisors (see below), whose sum is σ = 3253807800. Its totient is φ = 1928182272.

The previous prime is 2560867151. The next prime is 2560867171. The reversal of 2560867165 is 5617680652.

It can be written as a sum of positive squares in 4 ways, for example, as 40525956 + 2520341209 = 6366^2 + 50203^2 .

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 2560867165 - 2⁹ = 2560866653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15063840 + ... + 15064009.

It is an arithmetic number, because the mean of its divisors is an integer number (406725975).

Almost surely, 2^2560867165 is an apocalyptic number.

It is an amenable number.

2560867165 is a deficient number, since it is larger than the sum of its proper divisors (692940635).

2560867165 is a wasteful number, since it uses less digits than its factorization.

2560867165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30127871.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 2560867165 is about 50605.0112637079. The cubic root of 2560867165 is about 1368.1352014970.

The spelling of 2560867165 in words is "two billion, five hundred sixty million, eight hundred sixty-seven thousand, one hundred sixty-five".