668342484847575 has 96 divisors (see below), whose sum is σ = 1232255114345280. Its totient is φ = 355147404595200.

The previous prime is 668342484847549. The next prime is 668342484847613. The reversal of 668342484847575 is 575748484243866.

668342484847575 is a `hidden beast` number, since 6 + 6 + 8 + 3 + 4 + 2 + 484 + 84 + 7 + 57 + 5 = 666.

It is not a de Polignac number, because 668342484847575 - 2¹³ = 668342484839383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 668342484847494 and 668342484847503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2084937009 + ... + 2085257541.

It is an arithmetic number, because the mean of its divisors is an integer number (12835990774430).

Almost surely, 2^{668342484847575} is an apocalyptic number.

668342484847575 is a deficient number, since it is larger than the sum of its proper divisors (563912629497705).

668342484847575 is a wasteful number, since it uses less digits than its factorization.

668342484847575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331826 (or 331815 counting only the distinct ones).

The product of its digits is 34681651200, while the sum is 81.

The spelling of 668342484847575 in words is "six hundred sixty-eight trillion, three hundred forty-two billion, four hundred eighty-four million, eight hundred forty-seven thousand, five hundred seventy-five".