100666668009 has 16 divisors (see below), whose sum is σ = 137875400000. Its totient is φ = 65285196480.

The previous prime is 100666668007. The next prime is 100666668023. The reversal of 100666668009 is 900866666001.

It is a happy number.

It is not a de Polignac number, because 100666668009 - 2¹ = 100666668007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100666668007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538242 + ... + 700740.

It is an arithmetic number, because the mean of its divisors is an integer number (8617212500).

Almost surely, 2^100666668009 is an apocalyptic number.

It is an amenable number.

100666668009 is a deficient number, since it is larger than the sum of its proper divisors (37208731991).

100666668009 is a wasteful number, since it uses less digits than its factorization.

100666668009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168120.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 100666668009 in words is "one hundred billion, six hundred sixty-six million, six hundred sixty-eight thousand, nine".