22444140155505 has 32 divisors (see below), whose sum is σ = 36061895810304. Its totient is φ = 11919877533696.

The previous prime is 22444140155501. The next prime is 22444140155527. The reversal of 22444140155505 is 50555104144422.

It is not a de Polignac number, because 22444140155505 - 2² = 22444140155501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22444140155501) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 934237 + ... + 6764693.

It is an arithmetic number, because the mean of its divisors is an integer number (1126934244072).

Almost surely, 2^{22444140155505} is an apocalyptic number.

It is an amenable number.

22444140155505 is a deficient number, since it is larger than the sum of its proper divisors (13617755654799).

22444140155505 is a wasteful number, since it uses less digits than its factorization.

22444140155505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831545.

The product of its (nonzero) digits is 640000, while the sum is 42.

Adding to 22444140155505 its reverse (50555104144422), we get a palindrome (72999244299927).

The spelling of 22444140155505 in words is "twenty-two trillion, four hundred forty-four billion, one hundred forty million, one hundred fifty-five thousand, five hundred five".