6665140124 has 12 divisors (see below), whose sum is σ = 11912165664. Its totient is φ = 3261664224.

The previous prime is 6665140099. The next prime is 6665140129. The reversal of 6665140124 is 4210415666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665140129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17726249 + ... + 17726624.

It is an arithmetic number, because the mean of its divisors is an integer number (992680472).

Almost surely, 2^6665140124 is an apocalyptic number.

It is an amenable number.

6665140124 is a deficient number, since it is larger than the sum of its proper divisors (5247025540).

6665140124 is a wasteful number, since it uses less digits than its factorization.

6665140124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35452924 (or 35452922 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6665140124 is about 81640.3094310648. The cubic root of 6665140124 is about 1881.9283936311.

The spelling of 6665140124 in words is "six billion, six hundred sixty-five million, one hundred forty thousand, one hundred twenty-four".