444421716366 has 16 divisors (see below), whose sum is σ = 895628498688. Its totient is φ = 147009727800.

The previous prime is 444421716287. The next prime is 444421716371. The reversal of 444421716366 is 663617124444.

It is a happy number.

It is a super-3 number, since 3×444421716366³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282710230 + ... + 282711801.

It is an arithmetic number, because the mean of its divisors is an integer number (55976781168).

Almost surely, 2^444421716366 is an apocalyptic number.

444421716366 is an abundant number, since it is smaller than the sum of its proper divisors (451206782322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444421716366 is a wasteful number, since it uses less digits than its factorization.

444421716366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565422167.

The product of its digits is 2322432, while the sum is 48.

The spelling of 444421716366 in words is "four hundred forty-four billion, four hundred twenty-one million, seven hundred sixteen thousand, three hundred sixty-six".