221604530444441 has 8 divisors (see below), whose sum is σ = 221645481160704. Its totient is φ = 221563580562720.

The previous prime is 221604530444393. The next prime is 221604530444513. The reversal of 221604530444441 is 144444035406122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221604530444441 - 2³⁴ = 221587350575257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221604530444392 and 221604530444401.

It is not an unprimeable number, because it can be changed into a prime (221604530494441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829793165 + ... + 830060181.

It is an arithmetic number, because the mean of its divisors is an integer number (27705685145088).

Almost surely, 2^{221604530444441} is an apocalyptic number.

It is an amenable number.

221604530444441 is a deficient number, since it is larger than the sum of its proper divisors (40950716263).

221604530444441 is a wasteful number, since it uses less digits than its factorization.

221604530444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417271.

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 221604530444441 in words is "two hundred twenty-one trillion, six hundred four billion, five hundred thirty million, four hundred forty-four thousand, four hundred forty-one".