163255566244703 has 2 divisors, whose sum is σ = 163255566244704. Its totient is φ = 163255566244702.

The previous prime is 163255566244621. The next prime is 163255566244717. The reversal of 163255566244703 is 307442665552361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163255566244703 - 2¹⁸ = 163255565982559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163255566244723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81627783122351 + 81627783122352.

It is an arithmetic number, because the mean of its divisors is an integer number (81627783122352).

Almost surely, 2^{163255566244703} is an apocalyptic number.

163255566244703 is a deficient number, since it is larger than the sum of its proper divisors (1).

163255566244703 is an equidigital number, since it uses as much as digits as its factorization.

163255566244703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864000, while the sum is 59.

The spelling of 163255566244703 in words is "one hundred sixty-three trillion, two hundred fifty-five billion, five hundred sixty-six million, two hundred forty-four thousand, seven hundred three".