200660520 has 256 divisors, whose sum is σ = 696729600. Its totient is φ = 45895680.

The previous prime is 200660507. The next prime is 200660521. The reversal of 200660520 is 25066002.

It is not an unprimeable number, because it can be changed into a prime (200660521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1201477 + ... + 1201643.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^200660520 is an apocalyptic number.

200660520 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 200660520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348364800).

200660520 is an abundant number, since it is smaller than the sum of its proper divisors (496069080).

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

200660520 is a wasteful number, since it uses less digits than its factorization.

200660520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 200660520 is about 14165.4692827312. The cubic root of 200660520 is about 585.4466309445.

It can be divided in two parts, 2006 and 60520, that added together give a palindrome (62526).

The spelling of 200660520 in words is "two hundred million, six hundred sixty thousand, five hundred twenty".