200668913638 has 8 divisors (see below), whose sum is σ = 307407697632. Its totient is φ = 98199681096.

The previous prime is 200668913623. The next prime is 200668913651. The reversal of 200668913638 is 836319866002.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1067387745 + ... + 1067387932.

It is an arithmetic number, because the mean of its divisors is an integer number (38425962204).

Almost surely, 2^200668913638 is an apocalyptic number.

200668913638 is a deficient number, since it is larger than the sum of its proper divisors (106738783994).

200668913638 is a wasteful number, since it uses less digits than its factorization.

200668913638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134775726.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 200668913638 in words is "two hundred billion, six hundred sixty-eight million, nine hundred thirteen thousand, six hundred thirty-eight".