20160560 has 120 divisors (see below), whose sum is σ = 56402640. Its totient is φ = 6676992.

The previous prime is 20160541. The next prime is 20160583. The reversal of 20160560 is 6506102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144971 + ... + 145109.

It is an arithmetic number, because the mean of its divisors is an integer number (470022).

Almost surely, 2^20160560 is an apocalyptic number.

20160560 is a gapful number since it is divisible by the number (20) 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 20160560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28201320).

20160560 is an abundant number, since it is smaller than the sum of its proper divisors (36242080).

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

20160560 is a wasteful number, since it uses less digits than its factorization.

20160560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 20160560 is about 4490.0512246521. The cubic root of 20160560 is about 272.1662046489.

Adding to 20160560 its reverse (6506102), we get a palindrome (26666662).

It can be divided in two parts, 20160 and 560, that multiplied together give a square (11289600 = 3360²).

The spelling of 20160560 in words is "twenty million, one hundred sixty thousand, five hundred sixty".