144044120004021 has 48 divisors (see below), whose sum is σ = 215416789080064. Its totient is φ = 92678032766592.

The previous prime is 144044120004017. The next prime is 144044120004061. The reversal of 144044120004021 is 120400021440441.

It is a happy number.

144044120004021 is a `hidden beast` number, since 1 + 440 + 44 + 120 + 0 + 0 + 40 + 21 = 666.

It is not a de Polignac number, because 144044120004021 - 2² = 144044120004017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144044120004061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194041266 + ... + 194782188.

Almost surely, 2^{144044120004021} is an apocalyptic number.

It is an amenable number.

144044120004021 is a deficient number, since it is larger than the sum of its proper divisors (71372669076043).

144044120004021 is a wasteful number, since it uses less digits than its factorization.

144044120004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745690 (or 745687 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 144044120004021 its reverse (120400021440441), we get a palindrome (264444141444462).

The spelling of 144044120004021 in words is "one hundred forty-four trillion, forty-four billion, one hundred twenty million, four thousand, twenty-one".