441321200661 has 16 divisors (see below), whose sum is σ = 641957437440. Its totient is φ = 267452523120.

The previous prime is 441321200657. The next prime is 441321200669. The reversal of 441321200661 is 166002123144.

It is not a de Polignac number, because 441321200661 - 2² = 441321200657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441321200669) by changing a digit.

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, 246060 + ... + 971178.

It is an arithmetic number, because the mean of its divisors is an integer number (40122339840).

Almost surely, 2^441321200661 is an apocalyptic number.

It is an amenable number.

441321200661 is a deficient number, since it is larger than the sum of its proper divisors (200636236779).

441321200661 is a wasteful number, since it uses less digits than its factorization.

441321200661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743576.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 441321200661 in words is "four hundred forty-one billion, three hundred twenty-one million, two hundred thousand, six hundred sixty-one".