201559506852 has 96 divisors (see below), whose sum is σ = 521978204160. Its totient is φ = 60017898880.

The previous prime is 201559506829. The next prime is 201559506923. The reversal of 201559506852 is 258605955102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26576653 + ... + 26584235.

It is an arithmetic number, because the mean of its divisors is an integer number (5437272960).

Almost surely, 2^201559506852 is an apocalyptic number.

201559506852 is a gapful number since it is divisible by the number (22) 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 201559506852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260989102080).

201559506852 is an abundant number, since it is smaller than the sum of its proper divisors (320418697308).

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

201559506852 is a wasteful number, since it uses less digits than its factorization.

201559506852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11073 (or 11071 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 201559506852 in words is "two hundred one billion, five hundred fifty-nine million, five hundred six thousand, eight hundred fifty-two".