8220610720 has 96 divisors (see below), whose sum is σ = 22236778368. Its totient is φ = 2813273088.

The previous prime is 8220610693. The next prime is 8220610751. The reversal of 8220610720 is 270160228.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624042 + ... + 637078.

It is an arithmetic number, because the mean of its divisors is an integer number (231633108).

Almost surely, 2^8220610720 is an apocalyptic number.

8220610720 is a gapful number since it is divisible by the number (80) 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 8220610720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11118389184).

8220610720 is an abundant number, since it is smaller than the sum of its proper divisors (14016167648).

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

8220610720 is a wasteful number, since it uses less digits than its factorization.

8220610720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13622 (or 13614 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 8220610720 is about 90667.5836228142. The cubic root of 8220610720 is about 2018.2177790751.

Adding to 8220610720 its reverse (270160228), we get a palindrome (8490770948).

The spelling of 8220610720 in words is "eight billion, two hundred twenty million, six hundred ten thousand, seven hundred twenty".