144122279636866 has 16 divisors (see below), whose sum is σ = 218665087407000. Its totient is φ = 71234307099648.

The previous prime is 144122279636851. The next prime is 144122279636869. The reversal of 144122279636866 is 668636972221441.

It can be written as a sum of positive squares in 4 ways, for example, as 29383283803225 + 114738995833641 = 5420635^2 + 10711629^2 .

It is not an unprimeable number, because it can be changed into a prime (144122279636869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96741591 + ... + 98220058.

Almost surely, 2^{144122279636866} is an apocalyptic number.

144122279636866 is a deficient number, since it is larger than the sum of its proper divisors (74542807770134).

144122279636866 is a wasteful number, since it uses less digits than its factorization.

144122279636866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194965893.

The product of its digits is 250822656, while the sum is 67.

The spelling of 144122279636866 in words is "one hundred forty-four trillion, one hundred twenty-two billion, two hundred seventy-nine million, six hundred thirty-six thousand, eight hundred sixty-six".