200521301641 has 4 divisors (see below), whose sum is σ = 200523357252. Its totient is φ = 200519246032.

The previous prime is 200521301581. The next prime is 200521301653. The reversal of 200521301641 is 146103125002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24553636416 + 175967665225 = 156696^2 + 419485^2 .

It is a cyclic number.

It is not a de Polignac number, because 200521301641 - 2¹¹ = 200521299593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200521301341) 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, 873790 + ... + 1079143.

It is an arithmetic number, because the mean of its divisors is an integer number (50130839313).

Almost surely, 2^200521301641 is an apocalyptic number.

It is an amenable number.

200521301641 is a deficient number, since it is larger than the sum of its proper divisors (2055611).

200521301641 is a wasteful number, since it uses less digits than its factorization.

200521301641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055610.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 200521301641 its reverse (146103125002), we get a palindrome (346624426643).

The spelling of 200521301641 in words is "two hundred billion, five hundred twenty-one million, three hundred one thousand, six hundred forty-one".