200505715660 has 48 divisors (see below), whose sum is σ = 431278848000. Its totient is φ = 78259898304.

The previous prime is 200505715589. The next prime is 200505715681. The reversal of 200505715660 is 66517505002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761941 + ... + 990739.

It is an arithmetic number, because the mean of its divisors is an integer number (8984976000).

Almost surely, 2^200505715660 is an apocalyptic number.

200505715660 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 200505715660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215639424000).

200505715660 is an abundant number, since it is smaller than the sum of its proper divisors (230773132340).

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

200505715660 is a wasteful number, since it uses less digits than its factorization.

200505715660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229870 (or 229868 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 200505715660 in words is "two hundred billion, five hundred five million, seven hundred fifteen thousand, six hundred sixty".