201145211444 has 24 divisors (see below), whose sum is σ = 370627508160. Its totient is φ = 95254405056.

The previous prime is 201145211429. The next prime is 201145211461. The reversal of 201145211444 is 444112541102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51617 + ... + 636360.

It is an arithmetic number, because the mean of its divisors is an integer number (15442812840).

Almost surely, 2^201145211444 is an apocalyptic number.

It is an amenable number.

201145211444 is a deficient number, since it is larger than the sum of its proper divisors (169482296716).

201145211444 is a wasteful number, since it uses less digits than its factorization.

201145211444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691847 (or 691845 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 201145211444 its reverse (444112541102), we get a palindrome (645257752546).

The spelling of 201145211444 in words is "two hundred one billion, one hundred forty-five million, two hundred eleven thousand, four hundred forty-four".