201444132015 has 36 divisors (see below), whose sum is σ = 406177152264. Its totient is φ = 92088745056.

The previous prime is 201444131849. The next prime is 201444132053. The reversal of 201444132015 is 510231444102.

201444132015 is a `hidden beast` number, since 2 + 0 + 1 + 44 + 413 + 201 + 5 = 666.

201444132015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201444132015 - 2⁹ = 201444131503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201444132015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 45676737 + ... + 45681146.

It is an arithmetic number, because the mean of its divisors is an integer number (11282698674).

Almost surely, 2^201444132015 is an apocalyptic number.

201444132015 is an abundant number, since it is smaller than the sum of its proper divisors (204733020249).

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

201444132015 is a wasteful number, since it uses less digits than its factorization.

201444132015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91357908 (or 91357898 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 201444132015 its reverse (510231444102), we get a palindrome (711675576117).

The spelling of 201444132015 in words is "two hundred one billion, four hundred forty-four million, one hundred thirty-two thousand, fifteen".