163329128345 has 16 divisors (see below), whose sum is σ = 207608728320. Its totient is φ = 122927057664.

The previous prime is 163329128341. The next prime is 163329128363. The reversal of 163329128345 is 543821923361.

163329128345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163329128345 - 2² = 163329128341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163329128345.

It is not an unprimeable number, because it can be changed into a prime (163329128341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181697 + ... + 599726.

It is an arithmetic number, because the mean of its divisors is an integer number (12975545520).

Almost surely, 2^163329128345 is an apocalyptic number.

It is an amenable number.

163329128345 is a deficient number, since it is larger than the sum of its proper divisors (44279599975).

163329128345 is a wasteful number, since it uses less digits than its factorization.

163329128345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783904.

The product of its digits is 933120, while the sum is 47.

The spelling of 163329128345 in words is "one hundred sixty-three billion, three hundred twenty-nine million, one hundred twenty-eight thousand, three hundred forty-five".