200001854564 has 12 divisors (see below), whose sum is σ = 350296634604. Its totient is φ = 99917101824.

The previous prime is 200001854551. The next prime is 200001854567. The reversal of 200001854564 is 465458100002.

It can be written as a sum of positive squares in 2 ways, for example, as 90601000000 + 109400854564 = 301000^2 + 330758^2 .

It is not an unprimeable number, because it can be changed into a prime (200001854567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20950997 + ... + 20960540.

It is an arithmetic number, because the mean of its divisors is an integer number (29191386217).

Almost surely, 2^200001854564 is an apocalyptic number.

It is an amenable number.

200001854564 is a deficient number, since it is larger than the sum of its proper divisors (150294780040).

200001854564 is a wasteful number, since it uses less digits than its factorization.

200001854564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41912734 (or 41912732 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 200001854564 its reverse (465458100002), we get a palindrome (665459954566).

The spelling of 200001854564 in words is "two hundred billion, one million, eight hundred fifty-four thousand, five hundred sixty-four".