22818565980 has 108 divisors (see below), whose sum is σ = 80516971080. Its totient is φ = 5215670208.

The previous prime is 22818565951. The next prime is 22818565999. The reversal of 22818565980 is 8956581822.

It is a happy number.

It is a super-2 number, since 2×22818565980² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1284750 + ... + 1302389.

It is an arithmetic number, because the mean of its divisors is an integer number (745527510).

Almost surely, 2^22818565980 is an apocalyptic number.

22818565980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22818565980 is an abundant number, since it is smaller than the sum of its proper divisors (57698405100).

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

22818565980 is a wasteful number, since it uses less digits than its factorization.

22818565980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587168 (or 2587156 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 22818565980 in words is "twenty-two billion, eight hundred eighteen million, five hundred sixty-five thousand, nine hundred eighty".