200644664620 has 24 divisors (see below), whose sum is σ = 421371770400. Its totient is φ = 80254442112.

The previous prime is 200644664581. The next prime is 200644664621. The reversal of 200644664620 is 26466446002.

It is not an unprimeable number, because it can be changed into a prime (200644664621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296241 + ... + 699319.

It is an arithmetic number, because the mean of its divisors is an integer number (17557157100).

Almost surely, 2^200644664620 is an apocalyptic number.

200644664620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200644664620 is an abundant number, since it is smaller than the sum of its proper divisors (220727105780).

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

200644664620 is a wasteful number, since it uses less digits than its factorization.

200644664620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427977 (or 427975 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 200644664620 in words is "two hundred billion, six hundred forty-four million, six hundred sixty-four thousand, six hundred twenty".