260535866 has 12 divisors (see below), whose sum is σ = 412456122. Its totient is φ = 123411384.

The previous prime is 260535859. The next prime is 260535883. The reversal of 260535866 is 668535062.

It can be written as a sum of positive squares in only one way, i.e., 154878025 + 105657841 = 12445^2 + 10279^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 179705 + ... + 181148.

Almost surely, 2^260535866 is an apocalyptic number.

260535866 is a deficient number, since it is larger than the sum of its proper divisors (151920256).

260535866 is a wasteful number, since it uses less digits than its factorization.

260535866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360893 (or 360874 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 260535866 is about 16141.1234429330. The cubic root of 260535866 is about 638.6886119442.

The spelling of 260535866 in words is "two hundred sixty million, five hundred thirty-five thousand, eight hundred sixty-six".