6666006005 has 16 divisors (see below), whose sum is σ = 8212230144. Its totient is φ = 5191979520.

The previous prime is 6666006001. The next prime is 6666006013. The reversal of 6666006005 is 5006006666.

It is not a de Polignac number, because 6666006005 - 2² = 6666006001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666006001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29372 + ... + 119141.

It is an arithmetic number, because the mean of its divisors is an integer number (513264384).

Almost surely, 2^6666006005 is an apocalyptic number.

It is an amenable number.

6666006005 is a deficient number, since it is larger than the sum of its proper divisors (1546224139).

6666006005 is a wasteful number, since it uses less digits than its factorization.

6666006005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148756.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 6666006005 is about 81645.6122825961. The cubic root of 6666006005 is about 1882.0098850651.

The spelling of 6666006005 in words is "six billion, six hundred sixty-six million, six thousand, five".