668200733495 has 4 divisors (see below), whose sum is σ = 801840880200. Its totient is φ = 534560586792.

The previous prime is 668200733479. The next prime is 668200733509. The reversal of 668200733495 is 594337002866.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 668200733495 - 2⁴ = 668200733479 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 66820073345 + ... + 66820073354.

It is an arithmetic number, because the mean of its divisors is an integer number (200460220050).

Almost surely, 2^668200733495 is an apocalyptic number.

668200733495 is a deficient number, since it is larger than the sum of its proper divisors (133640146705).

668200733495 is a wasteful number, since it uses less digits than its factorization.

668200733495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133640146704.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 668200733495 in words is "six hundred sixty-eight billion, two hundred million, seven hundred thirty-three thousand, four hundred ninety-five".