260696666 has 16 divisors (see below), whose sum is σ = 415160640. Its totient is φ = 122351040.

The previous prime is 260696647. The next prime is 260696669. The reversal of 260696666 is 666696062.

It is a happy number.

260696666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 260696666.

It is not an unprimeable number, because it can be changed into a prime (260696669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2771 + ... + 23001.

It is an arithmetic number, because the mean of its divisors is an integer number (25947540).

Almost surely, 2^260696666 is an apocalyptic number.

260696666 is a deficient number, since it is larger than the sum of its proper divisors (154463974).

260696666 is a wasteful number, since it uses less digits than its factorization.

260696666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20629.

The product of its (nonzero) digits is 839808, while the sum is 47.

The square root of 260696666 is about 16146.1037405313. The cubic root of 260696666 is about 638.8199822221.

The spelling of 260696666 in words is "two hundred sixty million, six hundred ninety-six thousand, six hundred sixty-six".