260666003 has 4 divisors (see below), whose sum is σ = 280717248. Its totient is φ = 240614760.

The previous prime is 260665963. The next prime is 260666009. The reversal of 260666003 is 300666062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 260666003 - 2⁸ = 260665747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260666009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10025603 + ... + 10025628.

It is an arithmetic number, because the mean of its divisors is an integer number (70179312).

Almost surely, 2^260666003 is an apocalyptic number.

260666003 is a deficient number, since it is larger than the sum of its proper divisors (20051245).

260666003 is a wasteful number, since it uses less digits than its factorization.

260666003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20051244.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 260666003 is about 16145.1541646402. The cubic root of 260666003 is about 638.7949353539.

The spelling of 260666003 in words is "two hundred sixty million, six hundred sixty-six thousand, three".