201344650542 has 96 divisors (see below), whose sum is σ = 504610808832. Its totient is φ = 56832725952.

The previous prime is 201344650517. The next prime is 201344650547. The reversal of 201344650542 is 245056443102.

201344650542 is a `hidden beast` number, since 2 + 0 + 13 + 44 + 65 + 0 + 542 = 666.

201344650542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201344650497 and 201344650506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201344650547) 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 47 ways as a sum of consecutive naturals, for example, 4927548 + ... + 4968240.

It is an arithmetic number, because the mean of its divisors is an integer number (5256362592).

Almost surely, 2^201344650542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201344650542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252305404416).

201344650542 is an abundant number, since it is smaller than the sum of its proper divisors (303266158290).

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

201344650542 is a wasteful number, since it uses less digits than its factorization.

201344650542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41182 (or 41179 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 201344650542 in words is "two hundred one billion, three hundred forty-four million, six hundred fifty thousand, five hundred forty-two".