22466574720 has 192 divisors, whose sum is σ = 80453777040. Its totient is φ = 5991045120.

The previous prime is 22466574703. The next prime is 22466574721. The reversal of 22466574720 is 2747566422.

It is a happy number.

22466574720 is a `hidden beast` number, since 2 + 2 + 4 + 6 + 6 + 574 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22466574721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83290 + ... + 227750.

Almost surely, 2^22466574720 is an apocalyptic number.

22466574720 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 22466574720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40226888520).

22466574720 is an abundant number, since it is smaller than the sum of its proper divisors (57987202320).

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

22466574720 is an equidigital number, since it uses as much as digits as its factorization.

22466574720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144495 (or 144471 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 22466574720 in words is "twenty-two billion, four hundred sixty-six million, five hundred seventy-four thousand, seven hundred twenty".