163109408 has 96 divisors (see below), whose sum is σ = 408240000. Its totient is φ = 62300160.

The previous prime is 163109389. The next prime is 163109413. The reversal of 163109408 is 804901361.

It is a happy number.

It is a super-2 number, since 2×163109408² = 53209357956220928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 129968 + ... + 131216.

It is an arithmetic number, because the mean of its divisors is an integer number (4252500).

Almost surely, 2^163109408 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 163109408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204120000).

163109408 is an abundant number, since it is smaller than the sum of its proper divisors (245130592).

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

163109408 is a wasteful number, since it uses less digits than its factorization.

163109408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 163109408 is about 12771.4293640140. The cubic root of 163109408 is about 546.3777480511.

The spelling of 163109408 in words is "one hundred sixty-three million, one hundred nine thousand, four hundred eight".