642222115643163 has 8 divisors (see below), whose sum is σ = 934141259117376. Its totient is φ = 389225524632200.

The previous prime is 642222115643149. The next prime is 642222115643201. The reversal of 642222115643163 is 361346511222246.

642222115643163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642222115643163 - 2⁹ = 642222115642651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642222115643063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9730638115773 + ... + 9730638115838.

It is an arithmetic number, because the mean of its divisors is an integer number (116767657389672).

Almost surely, 2^{642222115643163} is an apocalyptic number.

642222115643163 is a deficient number, since it is larger than the sum of its proper divisors (291919143474213).

642222115643163 is a wasteful number, since it uses less digits than its factorization.

642222115643163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19461276231625.

The product of its digits is 2488320, while the sum is 48.

The spelling of 642222115643163 in words is "six hundred forty-two trillion, two hundred twenty-two billion, one hundred fifteen million, six hundred forty-three thousand, one hundred sixty-three".