22516130720 has 96 divisors (see below), whose sum is σ = 54753402816. Its totient is φ = 8744601600.

The previous prime is 22516130713. The next prime is 22516130753. The reversal of 22516130720 is 2703161522.

It is a happy number.

It is a super-2 number, since 2×22516130720² (a number of 22 digits) contains 22 as substring.

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, 1376027 + ... + 1392293.

It is an arithmetic number, because the mean of its divisors is an integer number (570347946).

Almost surely, 2^22516130720 is an apocalyptic number.

22516130720 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 22516130720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27376701408).

22516130720 is an abundant number, since it is smaller than the sum of its proper divisors (32237272096).

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

22516130720 is a wasteful number, since it uses less digits than its factorization.

22516130720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16534 (or 16526 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 22516130720 in words is "twenty-two billion, five hundred sixteen million, one hundred thirty thousand, seven hundred twenty".