668355023300 has 18 divisors (see below), whose sum is σ = 1450330400778. Its totient is φ = 267342009280.

The previous prime is 668355023299. The next prime is 668355023309. The reversal of 668355023300 is 3320553866.

It can be written as a sum of positive squares in 3 ways, for example, as 77698217536 + 590656805764 = 278744^2 + 768542^2 .

It is not an unprimeable number, because it can be changed into a prime (668355023309) 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 5 ways as a sum of consecutive naturals, for example, 3341775017 + ... + 3341775216.

Almost surely, 2^668355023300 is an apocalyptic number.

It is an amenable number.

668355023300 is an abundant number, since it is smaller than the sum of its proper divisors (781975377478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668355023300 is a wasteful number, since it uses less digits than its factorization.

668355023300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6683550247 (or 6683550240 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 668355023300 in words is "six hundred sixty-eight billion, three hundred fifty-five million, twenty-three thousand, three hundred".