163633816842 has 16 divisors (see below), whose sum is σ = 327651310560. Its totient is φ = 54480659472.

The previous prime is 163633816783. The next prime is 163633816873. The reversal of 163633816842 is 248618336361.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15980992 + ... + 15991227.

It is an arithmetic number, because the mean of its divisors is an integer number (20478206910).

Almost surely, 2^163633816842 is an apocalyptic number.

163633816842 is an abundant number, since it is smaller than the sum of its proper divisors (164017493718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163633816842 is a wasteful number, since it uses less digits than its factorization.

163633816842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31973077.

The product of its digits is 2985984, while the sum is 51.

The spelling of 163633816842 in words is "one hundred sixty-three billion, six hundred thirty-three million, eight hundred sixteen thousand, eight hundred forty-two".