200021668347 has 16 divisors (see below), whose sum is σ = 284074463232. Its totient is φ = 124752266880.

The previous prime is 200021668339. The next prime is 200021668367. The reversal of 200021668347 is 743866120002.

It is a happy number.

It is not a de Polignac number, because 200021668347 - 2³ = 200021668339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200021668307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11733979 + ... + 11751012.

It is an arithmetic number, because the mean of its divisors is an integer number (17754653952).

Almost surely, 2^200021668347 is an apocalyptic number.

200021668347 is a deficient number, since it is larger than the sum of its proper divisors (84052794885).

200021668347 is a wasteful number, since it uses less digits than its factorization.

200021668347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23485178.

The product of its (nonzero) digits is 96768, while the sum is 39.

Adding to 200021668347 its reverse (743866120002), we get a palindrome (943887788349).

The spelling of 200021668347 in words is "two hundred billion, twenty-one million, six hundred sixty-eight thousand, three hundred forty-seven".