201144132444 has 24 divisors (see below), whose sum is σ = 469555582608. Its totient is φ = 67016719360.

The previous prime is 201144132439. The next prime is 201144132457. The reversal of 201144132444 is 444231441102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888837 + ... + 3940220.

It is an arithmetic number, because the mean of its divisors is an integer number (19564815942).

Almost surely, 2^201144132444 is an apocalyptic number.

It is an amenable number.

201144132444 is an abundant number, since it is smaller than the sum of its proper divisors (268411450164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201144132444 is a wasteful number, since it uses less digits than its factorization.

201144132444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831205 (or 7831203 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 201144132444 its reverse (444231441102), we get a palindrome (645375573546).

The spelling of 201144132444 in words is "two hundred one billion, one hundred forty-four million, one hundred thirty-two thousand, four hundred forty-four".