1046666081 has 8 divisors (see below), whose sum is σ = 1135265544. Its totient is φ = 961070080.

The previous prime is 1046666063. The next prime is 1046666087. The reversal of 1046666081 is 1806666401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5958481 + 1040707600 = 2441^2 + 32260^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1046666081 - 2¹⁰ = 1046665057 is a prime.

It is a super-3 number, since 3×1046666081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1046666087) 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 7 ways as a sum of consecutive naturals, for example, 750140 + ... + 751533.

It is an arithmetic number, because the mean of its divisors is an integer number (141908193).

Almost surely, 2^1046666081 is an apocalyptic number.

It is an amenable number.

1046666081 is a deficient number, since it is larger than the sum of its proper divisors (88599463).

1046666081 is a wasteful number, since it uses less digits than its factorization.

1046666081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501731.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1046666081 is about 32352.2191047229. The cubic root of 1046666081 is about 1015.3194755775.

The spelling of 1046666081 in words is "one billion, forty-six million, six hundred sixty-six thousand, eighty-one".