22660342453220 has 24 divisors (see below), whose sum is σ = 47588956578744. Its totient is φ = 9063710804736.

The previous prime is 22660342453213. The next prime is 22660342453247. The reversal of 22660342453220 is 2235424306622.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 296920369216 + 22363422084004 = 544904^2 + 4728998^2 .

It is a super-2 number, since 2×22660342453220² (a number of 28 digits) contains 22 as substring.

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, 26199857 + ... + 27050936.

It is an arithmetic number, because the mean of its divisors is an integer number (1982873190781).

Almost surely, 2^{22660342453220} is an apocalyptic number.

22660342453220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22660342453220 is an abundant number, since it is smaller than the sum of its proper divisors (24928614125524).

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

22660342453220 is a wasteful number, since it uses less digits than its factorization.

22660342453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53272079 (or 53272077 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 41.

Adding to 22660342453220 its reverse (2235424306622), we get a palindrome (24895766759842).

The spelling of 22660342453220 in words is "twenty-two trillion, six hundred sixty billion, three hundred forty-two million, four hundred fifty-three thousand, two hundred twenty".