163042645321443 has 16 divisors (see below), whose sum is σ = 218184072454656. Its totient is φ = 108298436001120.

The previous prime is 163042645321393. The next prime is 163042645321453. The reversal of 163042645321443 is 344123546240361.

It is not a de Polignac number, because 163042645321443 - 2⁴¹ = 160843622065891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163042645321392 and 163042645321401.

It is not an unprimeable number, because it can be changed into a prime (163042645321453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32464788 + ... + 37148993.

It is an arithmetic number, because the mean of its divisors is an integer number (13636504528416).

Almost surely, 2^{163042645321443} is an apocalyptic number.

163042645321443 is a deficient number, since it is larger than the sum of its proper divisors (55141427133213).

163042645321443 is a wasteful number, since it uses less digits than its factorization.

163042645321443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69616634.

The product of its (nonzero) digits is 4976640, while the sum is 48.

The spelling of 163042645321443 in words is "one hundred sixty-three trillion, forty-two billion, six hundred forty-five million, three hundred twenty-one thousand, four hundred forty-three".