442445223105555 has 16 divisors (see below), whose sum is σ = 707915426366880. Its totient is φ = 235969762523648.

The previous prime is 442445223105551. The next prime is 442445223105569. The reversal of 442445223105555 is 555501322544244.

It is a cyclic number.

It is not a de Polignac number, because 442445223105555 - 2² = 442445223105551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442445223105498 and 442445223105507.

It is not an unprimeable number, because it can be changed into a prime (442445223105551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60364470 + ... + 67296059.

It is an arithmetic number, because the mean of its divisors is an integer number (44244714147930).

Almost surely, 2^{442445223105555} is an apocalyptic number.

442445223105555 is a deficient number, since it is larger than the sum of its proper divisors (265470203261325).

442445223105555 is a wasteful number, since it uses less digits than its factorization.

442445223105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127891590.

The product of its (nonzero) digits is 19200000, while the sum is 51.

Adding to 442445223105555 its reverse (555501322544244), we get a palindrome (997946545649799).

The spelling of 442445223105555 in words is "four hundred forty-two trillion, four hundred forty-five billion, two hundred twenty-three million, one hundred five thousand, five hundred fifty-five".