216065370971 has 2 divisors, whose sum is σ = 216065370972. Its totient is φ = 216065370970.

The previous prime is 216065370943. The next prime is 216065371057. The reversal of 216065370971 is 179073560612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216065370971 - 2⁶ = 216065370907 is a prime.

It is not a weakly prime, because it can be changed into another prime (216065070971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108032685485 + 108032685486.

It is an arithmetic number, because the mean of its divisors is an integer number (108032685486).

Almost surely, 2^216065370971 is an apocalyptic number.

216065370971 is a deficient number, since it is larger than the sum of its proper divisors (1).

216065370971 is an equidigital number, since it uses as much as digits as its factorization.

216065370971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 216065370971 in words is "two hundred sixteen billion, sixty-five million, three hundred seventy thousand, nine hundred seventy-one".