1006043666 has 8 divisors (see below), whose sum is σ = 1509431484. Its totient is φ = 502899840.

The previous prime is 1006043641. The next prime is 1006043681. The reversal of 1006043666 is 6663406001.

1006043666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 988159225 + 17884441 = 31435^2 + 4229^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50315 + ... + 67406.

Almost surely, 2^1006043666 is an apocalyptic number.

1006043666 is a deficient number, since it is larger than the sum of its proper divisors (503387818).

1006043666 is a wasteful number, since it uses less digits than its factorization.

1006043666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121996.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 1006043666 is about 31718.1914049335. The cubic root of 1006043666 is about 1002.0105104720.

Adding to 1006043666 its reverse (6663406001), we get a palindrome (7669449667).

The spelling of 1006043666 in words is "one billion, six million, forty-three thousand, six hundred sixty-six".