260102666 has 24 divisors (see below), whose sum is σ = 413377380. Its totient is φ = 122726016.

The previous prime is 260102663. The next prime is 260102677. The reversal of 260102666 is 666201062.

It can be written as a sum of positive squares in 2 ways, for example, as 255328441 + 4774225 = 15979^2 + 2185^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (260102663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242780 + ... + 243848.

Almost surely, 2^260102666 is an apocalyptic number.

260102666 is a deficient number, since it is larger than the sum of its proper divisors (153274714).

260102666 is a wasteful number, since it uses less digits than its factorization.

260102666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 260102666 is about 16127.6987199042. The cubic root of 260102666 is about 638.3344273164.

The spelling of 260102666 in words is "two hundred sixty million, one hundred two thousand, six hundred sixty-six".