201591478163 has 2 divisors, whose sum is σ = 201591478164. Its totient is φ = 201591478162.

The previous prime is 201591478159. The next prime is 201591478201. The reversal of 201591478163 is 361874195102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201591478163 - 2² = 201591478159 is a prime.

It is not a weakly prime, because it can be changed into another prime (201591472163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100795739081 + 100795739082.

It is an arithmetic number, because the mean of its divisors is an integer number (100795739082).

It is a 1-persistent number, because it is pandigital, but 2⋅201591478163 = 403182956326 is not.

Almost surely, 2^201591478163 is an apocalyptic number.

201591478163 is a deficient number, since it is larger than the sum of its proper divisors (1).

201591478163 is an equidigital number, since it uses as much as digits as its factorization.

201591478163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 201591478163 in words is "two hundred one billion, five hundred ninety-one million, four hundred seventy-eight thousand, one hundred sixty-three".