144165993146 has 16 divisors (see below), whose sum is σ = 261679450176. Its totient is φ = 58150988736.

The previous prime is 144165993143. The next prime is 144165993229. The reversal of 144165993146 is 641399561441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (144165993143) 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, 302869496 + ... + 302869971.

It is an arithmetic number, because the mean of its divisors is an integer number (16354965636).

Almost surely, 2^144165993146 is an apocalyptic number.

144165993146 is a deficient number, since it is larger than the sum of its proper divisors (117513457030).

144165993146 is a wasteful number, since it uses less digits than its factorization.

144165993146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605739493.

The product of its digits is 2799360, while the sum is 53.

It can be divided in two parts, 144165 and 993146, that added together give a palindrome (1137311).

The spelling of 144165993146 in words is "one hundred forty-four billion, one hundred sixty-five million, nine hundred ninety-three thousand, one hundred forty-six".