163305560 has 64 divisors (see below), whose sum is σ = 402969600. Its totient is φ = 59068800.

The previous prime is 163305547. The next prime is 163305563. The reversal of 163305560 is 65503361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163305563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91961 + ... + 93719.

It is an arithmetic number, because the mean of its divisors is an integer number (6296400).

Almost surely, 2^163305560 is an apocalyptic number.

163305560 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 163305560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201484800).

163305560 is an abundant number, since it is smaller than the sum of its proper divisors (239664040).

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

163305560 is a wasteful number, since it uses less digits than its factorization.

163305560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 163305560 is about 12779.1063850333. The cubic root of 163305560 is about 546.5966811722.

The spelling of 163305560 in words is "one hundred sixty-three million, three hundred five thousand, five hundred sixty".