6668124564249 has 48 divisors (see below), whose sum is σ = 9934118088960. Its totient is φ = 4308055476480.

The previous prime is 6668124564221. The next prime is 6668124564253. The reversal of 6668124564249 is 9424654218666.

It is not a de Polignac number, because 6668124564249 - 2¹⁶ = 6668124498713 is a prime.

It is a super-2 number, since 2×6668124564249² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6668124564289) 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 47 ways as a sum of consecutive naturals, for example, 79538544 + ... + 79622334.

It is an arithmetic number, because the mean of its divisors is an integer number (206960793520).

Almost surely, 2^{6668124564249} is an apocalyptic number.

It is an amenable number.

6668124564249 is a deficient number, since it is larger than the sum of its proper divisors (3265993524711).

6668124564249 is a wasteful number, since it uses less digits than its factorization.

6668124564249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85982 (or 85979 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 6668124564249 in words is "six trillion, six hundred sixty-eight billion, one hundred twenty-four million, five hundred sixty-four thousand, two hundred forty-nine".