260661868 has 12 divisors (see below), whose sum is σ = 458796240. Its totient is φ = 129577232.

The previous prime is 260661853. The next prime is 260661871. The reversal of 260661868 is 868166062.

260661868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187648 + ... + 189031.

It is an arithmetic number, because the mean of its divisors is an integer number (38233020).

Almost surely, 2^260661868 is an apocalyptic number.

It is an amenable number.

260661868 is a deficient number, since it is larger than the sum of its proper divisors (198134372).

260661868 is a wasteful number, since it uses less digits than its factorization.

260661868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376856 (or 376854 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 260661868 is about 16145.0261071328. The cubic root of 260661868 is about 638.7915575562.

The spelling of 260661868 in words is "two hundred sixty million, six hundred sixty-one thousand, eight hundred sixty-eight".