200780836680 has 128 divisors (see below), whose sum is σ = 604843747200. Its totient is φ = 53319555072.

The previous prime is 200780836661. The next prime is 200780836681. The reversal of 200780836680 is 86638087002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (200780836681) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 64578966 + ... + 64582074.

It is an arithmetic number, because the mean of its divisors is an integer number (4725341775).

Almost surely, 2^200780836680 is an apocalyptic number.

200780836680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200780836680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302421873600).

200780836680 is an abundant number, since it is smaller than the sum of its proper divisors (404062910520).

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

200780836680 is a wasteful number, since it uses less digits than its factorization.

200780836680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183 (or 5179 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 200780836680 in words is "two hundred billion, seven hundred eighty million, eight hundred thirty-six thousand, six hundred eighty".