260864666 has 16 divisors (see below), whose sum is σ = 410021568. Its totient is φ = 124238400.

The previous prime is 260864647. The next prime is 260864683. The reversal of 260864666 is 666468062.

It is a Curzon number.

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, 680 + ... + 22851.

It is an arithmetic number, because the mean of its divisors is an integer number (25626348).

Almost surely, 2^260864666 is an apocalyptic number.

260864666 is a deficient number, since it is larger than the sum of its proper divisors (149156902).

260864666 is a wasteful number, since it uses less digits than its factorization.

260864666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23797.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 260864666 is about 16151.3053961592. The cubic root of 260864666 is about 638.9571770614.

The spelling of 260864666 in words is "two hundred sixty million, eight hundred sixty-four thousand, six hundred sixty-six".