6666130 has 16 divisors (see below), whose sum is σ = 12054744. Its totient is φ = 2654080.

The previous prime is 6666097. The next prime is 6666133. The reversal of 6666130 is 316666.

It can be written as a sum of positive squares in 4 ways, for example, as 4583881 + 2082249 = 2141^2 + 1443^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 900 + ... + 3760.

Almost surely, 2^6666130 is an apocalyptic number.

6666130 is a deficient number, since it is larger than the sum of its proper divisors (5388614).

6666130 is a wasteful number, since it uses less digits than its factorization.

6666130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3101.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 6666130 is about 2581.8849703269. The cubic root of 6666130 is about 188.2021554140.

The spelling of 6666130 in words is "six million, six hundred sixty-six thousand, one hundred thirty".