200021805752 has 8 divisors (see below), whose sum is σ = 375040885800. Its totient is φ = 100010902872.

The previous prime is 200021805679. The next prime is 200021805769. The reversal of 200021805752 is 257508120002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501362852 + ... + 12501362867.

It is an arithmetic number, because the mean of its divisors is an integer number (46880110725).

Almost surely, 2^200021805752 is an apocalyptic number.

It is an amenable number.

200021805752 is a deficient number, since it is larger than the sum of its proper divisors (175019080048).

200021805752 is a wasteful number, since it uses less digits than its factorization.

200021805752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25002725725 (or 25002725721 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

Adding to 200021805752 its reverse (257508120002), we get a palindrome (457529925754).

The spelling of 200021805752 in words is "two hundred billion, twenty-one million, eight hundred five thousand, seven hundred fifty-two".