163398045793 has 16 divisors (see below), whose sum is σ = 177681715200. Its totient is φ = 149690373840.

The previous prime is 163398045791. The next prime is 163398045799. The reversal of 163398045793 is 397540893361.

It is a cyclic number.

It is not a de Polignac number, because 163398045793 - 2¹ = 163398045791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163398045791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671730 + ... + 882052.

It is an arithmetic number, because the mean of its divisors is an integer number (11105107200).

Almost surely, 2^163398045793 is an apocalyptic number.

It is an amenable number.

163398045793 is a deficient number, since it is larger than the sum of its proper divisors (14283669407).

163398045793 is a wasteful number, since it uses less digits than its factorization.

163398045793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211692.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 163398045793 in words is "one hundred sixty-three billion, three hundred ninety-eight million, forty-five thousand, seven hundred ninety-three".