163911166608 has 160 divisors (see below), whose sum is σ = 487182112000. Its totient is φ = 46517649408.

The previous prime is 163911166607. The next prime is 163911166609. The reversal of 163911166608 is 806661119361.

It is a happy number.

163911166608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (163911166607) and next prime (163911166609).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (163911166607) 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 31 ways as a sum of consecutive naturals, for example, 53757468 + ... + 53760516.

It is an arithmetic number, because the mean of its divisors is an integer number (3044888200).

Almost surely, 2^163911166608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163911166608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243591056000).

163911166608 is an abundant number, since it is smaller than the sum of its proper divisors (323270945392).

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

163911166608 is a wasteful number, since it uses less digits than its factorization.

163911166608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 48.

The spelling of 163911166608 in words is "one hundred sixty-three billion, nine hundred eleven million, one hundred sixty-six thousand, six hundred eight".