444465603665 has 8 divisors (see below), whose sum is σ = 533363098560. Its totient is φ = 355569566832.

The previous prime is 444465603607. The next prime is 444465603667. The reversal of 444465603665 is 566306564444.

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 444465603665 - 2¹² = 444465599569 is a prime.

It is a super-2 number, since 2×444465603665² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (444465603667) 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, 486926 + ... + 1061144.

It is an arithmetic number, because the mean of its divisors is an integer number (66670387320).

Almost surely, 2^444465603665 is an apocalyptic number.

It is an amenable number.

444465603665 is a deficient number, since it is larger than the sum of its proper divisors (88897494895).

444465603665 is a wasteful number, since it uses less digits than its factorization.

444465603665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729031.

The product of its (nonzero) digits is 24883200, while the sum is 53.

The spelling of 444465603665 in words is "four hundred forty-four billion, four hundred sixty-five million, six hundred three thousand, six hundred sixty-five".