20144131444 has 48 divisors (see below), whose sum is σ = 35830480896. Its totient is φ = 9908748000.

The previous prime is 20144131433. The next prime is 20144131459. The reversal of 20144131444 is 44413144102.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46737909 + ... + 46738339.

It is an arithmetic number, because the mean of its divisors is an integer number (746468352).

Almost surely, 2^20144131444 is an apocalyptic number.

It is an amenable number.

20144131444 is a deficient number, since it is larger than the sum of its proper divisors (15686349452).

20144131444 is a wasteful number, since it uses less digits than its factorization.

20144131444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 20144131444 its reverse (44413144102), we get a palindrome (64557275546).

The spelling of 20144131444 in words is "twenty billion, one hundred forty-four million, one hundred thirty-one thousand, four hundred forty-four".