444632016222145 has 8 divisors (see below), whose sum is σ = 539059021729704. Its totient is φ = 352038544802304.

The previous prime is 444632016222143. The next prime is 444632016222157. The reversal of 444632016222145 is 541222610236444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61803308034064 + 382828708188081 = 7861508^2 + 19566009^2 .

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 444632016222145 - 2¹ = 444632016222143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444632016222095 and 444632016222104.

It is not an unprimeable number, because it can be changed into a prime (444632016222143) 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, 458383521394 + ... + 458383522363.

It is an arithmetic number, because the mean of its divisors is an integer number (67382377716213).

Almost surely, 2^{444632016222145} is an apocalyptic number.

It is an amenable number.

444632016222145 is a deficient number, since it is larger than the sum of its proper divisors (94427005507559).

444632016222145 is an equidigital number, since it uses as much as digits as its factorization.

444632016222145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916767043859.

The product of its (nonzero) digits is 2211840, while the sum is 46.

Adding to 444632016222145 its reverse (541222610236444), we get a palindrome (985854626458589).

The spelling of 444632016222145 in words is "four hundred forty-four trillion, six hundred thirty-two billion, sixteen million, two hundred twenty-two thousand, one hundred forty-five".