5161065220 has 48 divisors (see below), whose sum is σ = 11327702400. Its totient is φ = 1971484416.

The previous prime is 5161065157. The next prime is 5161065223. The reversal of 5161065220 is 225601615.

It is not an unprimeable number, because it can be changed into a prime (5161065223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287056 + ... + 304504.

It is an arithmetic number, because the mean of its divisors is an integer number (235993800).

Almost surely, 2^5161065220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5161065220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5663851200).

5161065220 is an abundant number, since it is smaller than the sum of its proper divisors (6166637180).

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

5161065220 is a wasteful number, since it uses less digits than its factorization.

5161065220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18124 (or 18122 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5161065220 is about 71840.5541459697. The cubic root of 5161065220 is about 1728.1434213271.

Adding to 5161065220 its reverse (225601615), we get a palindrome (5386666835).

The spelling of 5161065220 in words is "five billion, one hundred sixty-one million, sixty-five thousand, two hundred twenty".