260666366 has 24 divisors (see below), whose sum is σ = 403495560. Its totient is φ = 126256256.

The previous prime is 260666333. The next prime is 260666407. The reversal of 260666366 is 663666062.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1506656 + ... + 1506828.

It is an arithmetic number, because the mean of its divisors is an integer number (16812315).

Almost surely, 2^260666366 is an apocalyptic number.

260666366 is a deficient number, since it is larger than the sum of its proper divisors (142829194).

260666366 is a wasteful number, since it uses less digits than its factorization.

260666366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 41.

The square root of 260666366 is about 16145.1654063995. The cubic root of 260666366 is about 638.7952318795.

The spelling of 260666366 in words is "two hundred sixty million, six hundred sixty-six thousand, three hundred sixty-six".