22245544660 has 192 divisors, whose sum is σ = 51971673600. Its totient is φ = 7968153600.

The previous prime is 22245544631. The next prime is 22245544681. The reversal of 22245544660 is 6644554222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84583689 + ... + 84583951.

It is an arithmetic number, because the mean of its divisors is an integer number (270685800).

Almost surely, 2^22245544660 is an apocalyptic number.

22245544660 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 22245544660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25985836800).

22245544660 is an abundant number, since it is smaller than the sum of its proper divisors (29726128940).

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

22245544660 is a wasteful number, since it uses less digits than its factorization.

22245544660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 22245544660 in words is "twenty-two billion, two hundred forty-five million, five hundred forty-four thousand, six hundred sixty".