163444663304043 has 64 divisors (see below), whose sum is σ = 242371824168960. Its totient is φ = 97135158960000.

The previous prime is 163444663304011. The next prime is 163444663304149. The reversal of 163444663304043 is 340403366444361.

It is not a de Polignac number, because 163444663304043 - 2⁵ = 163444663304011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163444663384043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1387994418 + ... + 1388112168.

It is an arithmetic number, because the mean of its divisors is an integer number (3787059752640).

Almost surely, 2^{163444663304043} is an apocalyptic number.

163444663304043 is a deficient number, since it is larger than the sum of its proper divisors (78927160864917).

163444663304043 is a wasteful number, since it uses less digits than its factorization.

163444663304043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119600.

The product of its (nonzero) digits is 17915904, while the sum is 51.

The spelling of 163444663304043 in words is "one hundred sixty-three trillion, four hundred forty-four billion, six hundred sixty-three million, three hundred four thousand, forty-three".