20636160 has 80 divisors (see below), whose sum is σ = 65995776. Its totient is φ = 5500928.

The previous prime is 20636159. The next prime is 20636183. The reversal of 20636160 is 6163602.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 20636160.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6337 + ... + 9023.

Almost surely, 2^20636160 is an apocalyptic number.

20636160 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 20636160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32997888).

20636160 is an abundant number, since it is smaller than the sum of its proper divisors (45359616).

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

20636160 is an equidigital number, since it uses as much as digits as its factorization.

20636160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713 (or 2697 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20636160 is about 4542.7040405468. The cubic root of 20636160 is about 274.2897816857.

Adding to 20636160 its reverse (6163602), we get a palindrome (26799762).

The spelling of 20636160 in words is "twenty million, six hundred thirty-six thousand, one hundred sixty".