201505044150 has 72 divisors (see below), whose sum is σ = 542928531600. Its totient is φ = 53580669120.

The previous prime is 201505044149. The next prime is 201505044151. The reversal of 201505044150 is 51440505102.

201505044150 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 0 + 504 + 4 + 150 = 666.

It is an interprime number because it is at equal distance from previous prime (201505044149) and next prime (201505044151).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201505044151) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 484482 + ... + 798581.

It is an arithmetic number, because the mean of its divisors is an integer number (7540674050).

Almost surely, 2^201505044150 is an apocalyptic number.

201505044150 is an abundant number, since it is smaller than the sum of its proper divisors (341423487450).

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

201505044150 is a wasteful number, since it uses less digits than its factorization.

201505044150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283430 (or 1283422 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 201505044150 its reverse (51440505102), we get a palindrome (252945549252).

The spelling of 201505044150 in words is "two hundred one billion, five hundred five million, forty-four thousand, one hundred fifty".