441330536021645 has 4 divisors (see below), whose sum is σ = 529596643225980. Its totient is φ = 353064428817312.

The previous prime is 441330536021621. The next prime is 441330536021681. The reversal of 441330536021645 is 546120635033144.

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 66400236065956 + 374930299955689 = 8148634^2 + 19363117^2 .

It is a cyclic number.

It is not a de Polignac number, because 441330536021645 - 2⁶ = 441330536021581 is a prime.

It is a super-3 number, since 3×441330536021645³ (a number of 45 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 441330536021645.

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, 44133053602160 + ... + 44133053602169.

It is an arithmetic number, because the mean of its divisors is an integer number (132399160806495).

Almost surely, 2^{441330536021645} is an apocalyptic number.

It is an amenable number.

441330536021645 is a deficient number, since it is larger than the sum of its proper divisors (88266107204335).

441330536021645 is an equidigital number, since it uses as much as digits as its factorization.

441330536021645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88266107204334.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 441330536021645 in words is "four hundred forty-one trillion, three hundred thirty billion, five hundred thirty-six million, twenty-one thousand, six hundred forty-five".