200021540344 has 16 divisors (see below), whose sum is σ = 376121201400. Its totient is φ = 99722553312.

The previous prime is 200021540321. The next prime is 200021540363. The reversal of 200021540344 is 443045120002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36024159 + ... + 36029710.

Almost surely, 2^200021540344 is an apocalyptic number.

It is an amenable number.

200021540344 is a deficient number, since it is larger than the sum of its proper divisors (176099661056).

200021540344 is a wasteful number, since it uses less digits than its factorization.

200021540344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72054222 (or 72054218 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 200021540344 its reverse (443045120002), we get a palindrome (643066660346).

The spelling of 200021540344 in words is "two hundred billion, twenty-one million, five hundred forty thousand, three hundred forty-four".