260045170666 has 8 divisors (see below), whose sum is σ = 390070245924. Its totient is φ = 130021755360.

The previous prime is 260045170661. The next prime is 260045170667. The reversal of 260045170666 is 666071540062.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 257433449641 + 2611721025 = 507379^2 + 51105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (260045170661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108966 + ... + 729358.

Almost surely, 2^260045170666 is an apocalyptic number.

260045170666 is a deficient number, since it is larger than the sum of its proper divisors (130025075258).

260045170666 is a wasteful number, since it uses less digits than its factorization.

260045170666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829976.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 260045170666 in words is "two hundred sixty billion, forty-five million, one hundred seventy thousand, six hundred sixty-six".