260283665 has 4 divisors (see below), whose sum is σ = 312340404. Its totient is φ = 208226928.

The previous prime is 260283649. The next prime is 260283691. The reversal of 260283665 is 566382062.

260283665 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 39790864 + 220492801 = 6308^2 + 14849^2 .

It is a cyclic number.

It is not a de Polignac number, because 260283665 - 2⁴ = 260283649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26028362 + ... + 26028371.

It is an arithmetic number, because the mean of its divisors is an integer number (78085101).

Almost surely, 2^260283665 is an apocalyptic number.

It is an amenable number.

260283665 is a deficient number, since it is larger than the sum of its proper divisors (52056739).

260283665 is an equidigital number, since it uses as much as digits as its factorization.

260283665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52056738.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 260283665 is about 16133.3091769792. The cubic root of 260283665 is about 638.4824600210.

The spelling of 260283665 in words is "two hundred sixty million, two hundred eighty-three thousand, six hundred sixty-five".