201002001444 has 48 divisors (see below), whose sum is σ = 523412030400. Its totient is φ = 66705501888.

The previous prime is 201002001443. The next prime is 201002001479. The reversal of 201002001444 is 444100200102.

201002001444 is a `hidden beast` number, since 20 + 1 + 0 + 0 + 200 + 1 + 444 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201002001443) by changing a digit.

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, 4074889 + ... + 4123920.

It is an arithmetic number, because the mean of its divisors is an integer number (10904417300).

Almost surely, 2^201002001444 is an apocalyptic number.

It is an amenable number.

201002001444 is an abundant number, since it is smaller than the sum of its proper divisors (322410028956).

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

201002001444 is a wasteful number, since it uses less digits than its factorization.

201002001444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8199049 (or 8199041 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 201002001444 its reverse (444100200102), we get a palindrome (645102201546).

The spelling of 201002001444 in words is "two hundred one billion, two million, one thousand, four hundred forty-four".