1266330166 has 8 divisors (see below), whose sum is σ = 1935334944. Its totient is φ = 621218520.

The previous prime is 1266330161. The next prime is 1266330167. The reversal of 1266330166 is 6610336621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266330161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5973150 + ... + 5973361.

It is an arithmetic number, because the mean of its divisors is an integer number (241916868).

Almost surely, 2^1266330166 is an apocalyptic number.

1266330166 is a deficient number, since it is larger than the sum of its proper divisors (669004778).

1266330166 is a wasteful number, since it uses less digits than its factorization.

1266330166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11946566.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 1266330166 is about 35585.5330998427. The cubic root of 1266330166 is about 1081.8880343299. Note that the first 3 decimals are identical.

Adding to 1266330166 its reverse (6610336621), we get a palindrome (7876666787).

The spelling of 1266330166 in words is "one billion, two hundred sixty-six million, three hundred thirty thousand, one hundred sixty-six".