6666231 has 32 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 3628800.

The previous prime is 6666229. The next prime is 6666239. The reversal of 6666231 is 1326666.

It is not a de Polignac number, because 6666231 - 2¹ = 6666229 is a prime.

It is a super-2 number, since 2×6666231² = 88877271490722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666239) 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 31 ways as a sum of consecutive naturals, for example, 17400 + ... + 17778.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

Almost surely, 2^6666231 is an apocalyptic number.

6666231 is a deficient number, since it is larger than the sum of its proper divisors (4058889).

6666231 is a wasteful number, since it uses less digits than its factorization.

6666231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447.

The product of its digits is 7776, while the sum is 30.

The square root of 6666231 is about 2581.9045296060. The cubic root of 6666231 is about 188.2031059066.

The spelling of 6666231 in words is "six million, six hundred sixty-six thousand, two hundred thirty-one".