244221320045 has 4 divisors (see below), whose sum is σ = 293065584060. Its totient is φ = 195377056032.

The previous prime is 244221320023. The next prime is 244221320047. The reversal of 244221320045 is 540023122442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86811551044 + 157409769001 = 294638^2 + 396749^2 .

It is a cyclic number.

It is not a de Polignac number, because 244221320045 - 2¹⁰ = 244221319021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244221320047) 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 3 ways as a sum of consecutive naturals, for example, 24422132000 + ... + 24422132009.

It is an arithmetic number, because the mean of its divisors is an integer number (73266396015).

Almost surely, 2^244221320045 is an apocalyptic number.

It is an amenable number.

244221320045 is a deficient number, since it is larger than the sum of its proper divisors (48844264015).

244221320045 is an equidigital number, since it uses as much as digits as its factorization.

244221320045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48844264014.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 244221320045 its reverse (540023122442), we get a palindrome (784244442487).

The spelling of 244221320045 in words is "two hundred forty-four billion, two hundred twenty-one million, three hundred twenty thousand, forty-five".