1000326666 has 16 divisors (see below), whose sum is σ = 2004998688. Its totient is φ = 332718000.

The previous prime is 1000326647. The next prime is 1000326671. The reversal of 1000326666 is 6666230001.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 178060 + ... + 183591.

It is an arithmetic number, because the mean of its divisors is an integer number (125312418).

Almost surely, 2^1000326666 is an apocalyptic number.

1000326666 is an abundant number, since it is smaller than the sum of its proper divisors (1004672022).

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

1000326666 is a wasteful number, since it uses less digits than its factorization.

1000326666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362117.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1000326666 is about 31627.9412229124. The cubic root of 1000326666 is about 1000.1088768121.

Adding to 1000326666 its reverse (6666230001), we get a palindrome (7666556667).

The spelling of 1000326666 in words is "one billion, three hundred twenty-six thousand, six hundred sixty-six".