666124113 has 32 divisors (see below), whose sum is σ = 935193600. Its totient is φ = 421194816.

The previous prime is 666124099. The next prime is 666124159. The reversal of 666124113 is 311421666.

It is not a de Polignac number, because 666124113 - 2¹² = 666120017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666124163) 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, 1517148 + ... + 1517586.

It is an arithmetic number, because the mean of its divisors is an integer number (29224800).

Almost surely, 2^666124113 is an apocalyptic number.

It is an amenable number.

666124113 is a deficient number, since it is larger than the sum of its proper divisors (269069487).

666124113 is a wasteful number, since it uses less digits than its factorization.

666124113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741.

The product of its digits is 5184, while the sum is 30.

The square root of 666124113 is about 25809.3803296398. The cubic root of 666124113 is about 873.3434182773.

Adding to 666124113 its reverse (311421666), we get a palindrome (977545779).

The spelling of 666124113 in words is "six hundred sixty-six million, one hundred twenty-four thousand, one hundred thirteen".