260205865 has 16 divisors (see below), whose sum is σ = 320894208. Its totient is φ = 202455936.

The previous prime is 260205853. The next prime is 260205887. The reversal of 260205865 is 568502062.

260205865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 260205865 - 2¹⁵ = 260173097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260205865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34909 + ... + 41701.

It is an arithmetic number, because the mean of its divisors is an integer number (20055888).

Almost surely, 2^260205865 is an apocalyptic number.

It is an amenable number.

260205865 is a deficient number, since it is larger than the sum of its proper divisors (60688343).

260205865 is a wasteful number, since it uses less digits than its factorization.

260205865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 260205865 is about 16130.8978361404. The cubic root of 260205865 is about 638.4188385544.

The spelling of 260205865 in words is "two hundred sixty million, two hundred five thousand, eight hundred sixty-five".