200021660663 has 48 divisors (see below), whose sum is σ = 234876638304. Its totient is φ = 168341483520.

The previous prime is 200021660603. The next prime is 200021660687. The reversal of 200021660663 is 366066120002.

It is not a de Polignac number, because 200021660663 - 2¹² = 200021656567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021660603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 437683931 + ... + 437684387.

It is an arithmetic number, because the mean of its divisors is an integer number (4893263298).

Almost surely, 2^200021660663 is an apocalyptic number.

200021660663 is a deficient number, since it is larger than the sum of its proper divisors (34854977641).

200021660663 is a wasteful number, since it uses less digits than its factorization.

200021660663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 200021660663 its reverse (366066120002), we get a palindrome (566087780665).

The spelling of 200021660663 in words is "two hundred billion, twenty-one million, six hundred sixty thousand, six hundred sixty-three".