201563440271 has 2 divisors, whose sum is σ = 201563440272. Its totient is φ = 201563440270.

The previous prime is 201563440259. The next prime is 201563440277. The reversal of 201563440271 is 172044365102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201563440271 - 2⁶ = 201563440207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201563440277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100781720135 + 100781720136.

It is an arithmetic number, because the mean of its divisors is an integer number (100781720136).

Almost surely, 2^201563440271 is an apocalyptic number.

201563440271 is a deficient number, since it is larger than the sum of its proper divisors (1).

201563440271 is an equidigital number, since it uses as much as digits as its factorization.

201563440271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 201563440271 in words is "two hundred one billion, five hundred sixty-three million, four hundred forty thousand, two hundred seventy-one".