163645104 has 120 divisors (see below), whose sum is σ = 504061488. Its totient is φ = 45588480.

The previous prime is 163645099. The next prime is 163645109. The reversal of 163645104 is 401546361.

163645104 is digitally balanced in base 3, 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 (163645099) and next prime (163645109).

It is not an unprimeable number, because it can be changed into a prime (163645109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95584 + ... + 97280.

Almost surely, 2^163645104 is an apocalyptic number.

163645104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163645104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252030744).

163645104 is an abundant number, since it is smaller than the sum of its proper divisors (340416384).

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

163645104 is a wasteful number, since it uses less digits than its factorization.

163645104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 163645104 is about 12792.3846096027. The cubic root of 163645104 is about 546.9752458365.

The spelling of 163645104 in words is "one hundred sixty-three million, six hundred forty-five thousand, one hundred four".