201168518756 has 6 divisors (see below), whose sum is σ = 352044907830. Its totient is φ = 100584259376.

The previous prime is 201168518723. The next prime is 201168518773. The reversal of 201168518756 is 657815861102.

It can be written as a sum of positive squares in only one way, i.e., 112225000000 + 88943518756 = 335000^2 + 298234^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25146064841 + ... + 25146064848.

It is an arithmetic number, because the mean of its divisors is an integer number (58674151305).

Almost surely, 2^201168518756 is an apocalyptic number.

It is an amenable number.

201168518756 is a deficient number, since it is larger than the sum of its proper divisors (150876389074).

201168518756 is a wasteful number, since it uses less digits than its factorization.

201168518756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50292129693 (or 50292129691 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 201168518756 in words is "two hundred one billion, one hundred sixty-eight million, five hundred eighteen thousand, seven hundred fifty-six".