6666006725 has 48 divisors (see below), whose sum is σ = 9841751040. Its totient is φ = 4382553600.

The previous prime is 6666006703. The next prime is 6666006773. The reversal of 6666006725 is 5276006666.

It is not a de Polignac number, because 6666006725 - 2²⁶ = 6598897861 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 585689 + ... + 596961.

It is an arithmetic number, because the mean of its divisors is an integer number (205036480).

Almost surely, 2^6666006725 is an apocalyptic number.

It is an amenable number.

6666006725 is a deficient number, since it is larger than the sum of its proper divisors (3175744315).

6666006725 is a wasteful number, since it uses less digits than its factorization.

6666006725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11430 (or 11425 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 6666006725 is about 81645.6166918960. The cubic root of 6666006725 is about 1882.0099528242.

The spelling of 6666006725 in words is "six billion, six hundred sixty-six million, six thousand, seven hundred twenty-five".