201612564113 has 2 divisors, whose sum is σ = 201612564114. Its totient is φ = 201612564112.

The previous prime is 201612564091. The next prime is 201612564173. The reversal of 201612564113 is 311465216102.

201612564113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110584846849 + 91027717264 = 332543^2 + 301708^2 .

It is a cyclic number.

It is not a de Polignac number, because 201612564113 - 2⁸ = 201612563857 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201612564113.

It is not a weakly prime, because it can be changed into another prime (201612564173) 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 as a sum of consecutive naturals, namely, 100806282056 + 100806282057.

It is an arithmetic number, because the mean of its divisors is an integer number (100806282057).

Almost surely, 2^201612564113 is an apocalyptic number.

It is an amenable number.

201612564113 is a deficient number, since it is larger than the sum of its proper divisors (1).

201612564113 is an equidigital number, since it uses as much as digits as its factorization.

201612564113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 201612564113 in words is "two hundred one billion, six hundred twelve million, five hundred sixty-four thousand, one hundred thirteen".