260566146 has 20 divisors (see below), whose sum is σ = 583861542. Its totient is φ = 86855328.

The previous prime is 260566139. The next prime is 260566147. The reversal of 260566146 is 641665062.

It is a happy number.

260566146 is a `hidden beast` number, since 2 + 605 + 6 + 6 + 1 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 239909121 + 20657025 = 15489^2 + 4545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 260566146.

It is not an unprimeable number, because it can be changed into a prime (260566147) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 804055 + ... + 804378.

Almost surely, 2^260566146 is an apocalyptic number.

260566146 is an abundant number, since it is smaller than the sum of its proper divisors (323295396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260566146 is a wasteful number, since it uses less digits than its factorization.

260566146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608447 (or 1608438 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 260566146 is about 16142.0613925236. The cubic root of 260566146 is about 638.7133542088.

The spelling of 260566146 in words is "two hundred sixty million, five hundred sixty-six thousand, one hundred forty-six".