200620660 has 24 divisors (see below), whose sum is σ = 432691560. Its totient is φ = 78079104.

The previous prime is 200620657. The next prime is 200620687. The reversal of 200620660 is 66026002.

It can be written as a sum of positive squares in 4 ways, for example, as 19395216 + 181225444 = 4404^2 + 13462^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134815 + ... + 136294.

It is an arithmetic number, because the mean of its divisors is an integer number (18028815).

Almost surely, 2^200620660 is an apocalyptic number.

200620660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200620660 is an abundant number, since it is smaller than the sum of its proper divisors (232070900).

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

200620660 is a wasteful number, since it uses less digits than its factorization.

200620660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271155 (or 271153 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 200620660 is about 14164.0622704082. The cubic root of 200620660 is about 585.4078632319.

Adding to 200620660 its reverse (66026002), we get a palindrome (266646662).

The spelling of 200620660 in words is "two hundred million, six hundred twenty thousand, six hundred sixty".