244225315565 has 16 divisors (see below), whose sum is σ = 365386446720. Its totient is φ = 152244352320.

The previous prime is 244225315559. The next prime is 244225315573. The reversal of 244225315565 is 565513522442.

It is a happy number.

It is not a de Polignac number, because 244225315565 - 2⁴ = 244225315549 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 317175350 + ... + 317176119.

It is an arithmetic number, because the mean of its divisors is an integer number (22836652920).

Almost surely, 2^244225315565 is an apocalyptic number.

It is an amenable number.

244225315565 is a deficient number, since it is larger than the sum of its proper divisors (121161131155).

244225315565 is a wasteful number, since it uses less digits than its factorization.

244225315565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634351492.

The product of its digits is 1440000, while the sum is 44.

The spelling of 244225315565 in words is "two hundred forty-four billion, two hundred twenty-five million, three hundred fifteen thousand, five hundred sixty-five".