4445661022555 has 8 divisors (see below), whose sum is σ = 5648604593472. Its totient is φ = 3347321240448.

The previous prime is 4445661022541. The next prime is 4445661022601. The reversal of 4445661022555 is 5552201665444.

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 4445661022555 - 2¹⁹ = 4445660498267 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4445661022499 and 4445661022508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26150947107 + ... + 26150947276.

It is an arithmetic number, because the mean of its divisors is an integer number (706075574184).

Almost surely, 2^{4445661022555} is an apocalyptic number.

4445661022555 is a deficient number, since it is larger than the sum of its proper divisors (1202943570917).

4445661022555 is a wasteful number, since it uses less digits than its factorization.

4445661022555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52301894405.

The product of its (nonzero) digits is 5760000, while the sum is 49.

Adding to 4445661022555 its reverse (5552201665444), we get a palindrome (9997862687999).

The spelling of 4445661022555 in words is "four trillion, four hundred forty-five billion, six hundred sixty-one million, twenty-two thousand, five hundred fifty-five".