243155200163 has 2 divisors, whose sum is σ = 243155200164. Its totient is φ = 243155200162.

The previous prime is 243155200133. The next prime is 243155200181. The reversal of 243155200163 is 361002551342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243155200163 - 2¹⁴ = 243155183779 is a prime.

It is not a weakly prime, because it can be changed into another prime (243155200133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121577600081 + 121577600082.

It is an arithmetic number, because the mean of its divisors is an integer number (121577600082).

Almost surely, 2^243155200163 is an apocalyptic number.

243155200163 is a deficient number, since it is larger than the sum of its proper divisors (1).

243155200163 is an equidigital number, since it uses as much as digits as its factorization.

243155200163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 243155200163 in words is "two hundred forty-three billion, one hundred fifty-five million, two hundred thousand, one hundred sixty-three".