163220250662543 has 2 divisors, whose sum is σ = 163220250662544. Its totient is φ = 163220250662542.

The previous prime is 163220250662519. The next prime is 163220250662587. The reversal of 163220250662543 is 345266052022361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163220250662543 - 2²⁴ = 163220233885327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163220250667543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81610125331271 + 81610125331272.

It is an arithmetic number, because the mean of its divisors is an integer number (81610125331272).

Almost surely, 2^{163220250662543} is an apocalyptic number.

163220250662543 is a deficient number, since it is larger than the sum of its proper divisors (1).

163220250662543 is an equidigital number, since it uses as much as digits as its factorization.

163220250662543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 163220250662543 in words is "one hundred sixty-three trillion, two hundred twenty billion, two hundred fifty million, six hundred sixty-two thousand, five hundred forty-three".