668503301206 has 128 divisors (see below), whose sum is σ = 1222020172800. Its totient is φ = 271215267840.

The previous prime is 668503301143. The next prime is 668503301299. The reversal of 668503301206 is 602103305866.

It is a super-2 number, since 2×668503301206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 83381710 + ... + 83389726.

It is an arithmetic number, because the mean of its divisors is an integer number (9547032600).

Almost surely, 2^668503301206 is an apocalyptic number.

668503301206 is a deficient number, since it is larger than the sum of its proper divisors (553516871594).

668503301206 is a wasteful number, since it uses less digits than its factorization.

668503301206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 668503301206 in words is "six hundred sixty-eight billion, five hundred three million, three hundred one thousand, two hundred six".