201343145256 has 96 divisors (see below), whose sum is σ = 614753025600. Its totient is φ = 61013066400.

The previous prime is 201343145251. The next prime is 201343145281. The reversal of 201343145256 is 652541343102.

201343145256 is a `hidden beast` number, since 20 + 1 + 343 + 1 + 45 + 256 = 666.

201343145256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 201343145256.

It is not an unprimeable number, because it can be changed into a prime (201343145251) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3825700 + ... + 3877971.

It is an arithmetic number, because the mean of its divisors is an integer number (6403677350).

Almost surely, 2^201343145256 is an apocalyptic number.

It is an amenable number.

201343145256 is an abundant number, since it is smaller than the sum of its proper divisors (413409880344).

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

201343145256 is a wasteful number, since it uses less digits than its factorization.

201343145256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7703708 (or 7703687 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 201343145256 its reverse (652541343102), we get a palindrome (853884488358).

The spelling of 201343145256 in words is "two hundred one billion, three hundred forty-three million, one hundred forty-five thousand, two hundred fifty-six".