163643611546356 has 48 divisors (see below), whose sum is σ = 389149189894080. Its totient is φ = 53507010641920.

The previous prime is 163643611546339. The next prime is 163643611546423. The reversal of 163643611546356 is 653645116346361.

163643611546356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163643611546356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250362381 + ... + 251015156.

It is an arithmetic number, because the mean of its divisors is an integer number (8107274789460).

Almost surely, 2^{163643611546356} is an apocalyptic number.

It is an amenable number.

163643611546356 is an abundant number, since it is smaller than the sum of its proper divisors (225505578347724).

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

163643611546356 is a wasteful number, since it uses less digits than its factorization.

163643611546356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501378064 (or 501378062 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 60.

The spelling of 163643611546356 in words is "one hundred sixty-three trillion, six hundred forty-three billion, six hundred eleven million, five hundred forty-six thousand, three hundred fifty-six".