260236240666 has 16 divisors (see below), whose sum is σ = 392134133160. Its totient is φ = 129525304320.

The previous prime is 260236240613. The next prime is 260236240673. The reversal of 260236240666 is 666042632062.

It can be written as a sum of positive squares in 4 ways, for example, as 260231596641 + 4644025 = 510129^2 + 2155^2 .

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, 1084930 + ... + 1302898.

Almost surely, 2^260236240666 is an apocalyptic number.

260236240666 is a deficient number, since it is larger than the sum of its proper divisors (131897892494).

260236240666 is a wasteful number, since it uses less digits than its factorization.

260236240666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220689.

The product of its (nonzero) digits is 746496, while the sum is 43.

The spelling of 260236240666 in words is "two hundred sixty billion, two hundred thirty-six million, two hundred forty thousand, six hundred sixty-six".