1266105066 has 8 divisors (see below), whose sum is σ = 2532210144. Its totient is φ = 422035020.

The previous prime is 1266105059. The next prime is 1266105077. The reversal of 1266105066 is 6605016621.

It is a sphenic number, since it is the product of 3 distinct primes.

1266105066 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105508750 + ... + 105508761.

It is an arithmetic number, because the mean of its divisors is an integer number (316526268).

Almost surely, 2^1266105066 is an apocalyptic number.

1266105066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1266105066 is a wasteful number, since it uses less digits than its factorization.

1266105066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211017516.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1266105066 is about 35582.3701571438. The cubic root of 1266105066 is about 1081.8239258706.

The spelling of 1266105066 in words is "one billion, two hundred sixty-six million, one hundred five thousand, sixty-six".