6665324457979 has 18 divisors (see below), whose sum is σ = 7509398351420. Its totient is φ = 5911595791200.

The previous prime is 6665324457941. The next prime is 6665324458021. The reversal of 6665324457979 is 9797544235666.

It is not a de Polignac number, because 6665324457979 - 2¹⁹ = 6665323933691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6665324457179) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16181289 + ... + 16588090.

Almost surely, 2^{6665324457979} is an apocalyptic number.

6665324457979 is a deficient number, since it is larger than the sum of its proper divisors (844073893441).

6665324457979 is a wasteful number, since it uses less digits than its factorization.

6665324457979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32769483 (or 32769431 counting only the distinct ones).

The product of its digits is 2057529600, while the sum is 73.

The spelling of 6665324457979 in words is "six trillion, six hundred sixty-five billion, three hundred twenty-four million, four hundred fifty-seven thousand, nine hundred seventy-nine".