666124 has 12 divisors (see below), whose sum is σ = 1172248. Its totient is φ = 331200.

The previous prime is 666119. The next prime is 666139. The reversal of 666124 is 421666.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 9.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619 + ... + 1309.

2⁶⁶⁶¹²⁴ is an apocalyptic number.

It is an amenable number.

666124 is a deficient number, since it is larger than the sum of its proper divisors (506124).

666124 is a wasteful number, since it uses less digits than its factorization.

666124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936 (or 934 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 666124 is about 816.1641991658. The cubic root of 666124 is about 87.3343368893.

The spelling of 666124 in words is "six hundred sixty-six thousand, one hundred twenty-four".