20616160 has 48 divisors (see below), whose sum is σ = 48988800. Its totient is φ = 8198656.

The previous prime is 20616143. The next prime is 20616161. The reversal of 20616160 is 6161602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20616161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42801 + ... + 43279.

It is an arithmetic number, because the mean of its divisors is an integer number (1020600).

Almost surely, 2^20616160 is an apocalyptic number.

20616160 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 20616160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24494400).

20616160 is an abundant number, since it is smaller than the sum of its proper divisors (28372640).

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

20616160 is a wasteful number, since it uses less digits than its factorization.

20616160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20616160 is about 4540.5021748701. The cubic root of 20616160 is about 274.2011416672.

Adding to 20616160 its reverse (6161602), we get a palindrome (26777762).

The spelling of 20616160 in words is "twenty million, six hundred sixteen thousand, one hundred sixty".