200021432345 has 16 divisors (see below), whose sum is σ = 286241852160. Its totient is φ = 131194181184.

The previous prime is 200021432311. The next prime is 200021432357. The reversal of 200021432345 is 543234120002.

It is a cyclic number.

It is not a de Polignac number, because 200021432345 - 2⁸ = 200021432089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124236110 + ... + 124237719.

It is an arithmetic number, because the mean of its divisors is an integer number (17890115760).

Almost surely, 2^200021432345 is an apocalyptic number.

It is an amenable number.

200021432345 is a deficient number, since it is larger than the sum of its proper divisors (86220419815).

200021432345 is a wasteful number, since it uses less digits than its factorization.

200021432345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248473864.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 200021432345 its reverse (543234120002), we get a palindrome (743255552347).

The spelling of 200021432345 in words is "two hundred billion, twenty-one million, four hundred thirty-two thousand, three hundred forty-five".