163580120 has 128 divisors (see below), whose sum is σ = 447897600. Its totient is φ = 52992000.

The previous prime is 163580111. The next prime is 163580141. The reversal of 163580120 is 21085361.

It is a self number, because there is not a number n which added to its sum of digits gives 163580120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141545 + ... + 142695.

It is an arithmetic number, because the mean of its divisors is an integer number (3499200).

Almost surely, 2^163580120 is an apocalyptic number.

163580120 is a gapful number since it is divisible by the number (10) 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 163580120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223948800).

163580120 is an abundant number, since it is smaller than the sum of its proper divisors (284317480).

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

163580120 is a wasteful number, since it uses less digits than its factorization.

163580120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 163580120 is about 12789.8444087487. The cubic root of 163580120 is about 546.9028343710.

The spelling of 163580120 in words is "one hundred sixty-three million, five hundred eighty thousand, one hundred twenty".