144108585818 has 16 divisors (see below), whose sum is σ = 216917199720. Its totient is φ = 71803262976.

The previous prime is 144108585811. The next prime is 144108585821. The reversal of 144108585818 is 818585801441.

It can be written as a sum of positive squares in 4 ways, for example, as 113052630289 + 31055955529 = 336233^2 + 176227^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144108585818.

It is not an unprimeable number, because it can be changed into a prime (144108585811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604538 + ... + 808506.

Almost surely, 2^144108585818 is an apocalyptic number.

144108585818 is a deficient number, since it is larger than the sum of its proper divisors (72808613902).

144108585818 is a wasteful number, since it uses less digits than its factorization.

144108585818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205201.

The product of its (nonzero) digits is 1638400, while the sum is 53.

The spelling of 144108585818 in words is "one hundred forty-four billion, one hundred eight million, five hundred eighty-five thousand, eight hundred eighteen".