22180361424 has 80 divisors (see below), whose sum is σ = 61854207744. Its totient is φ = 6808435200.

The previous prime is 22180361353. The next prime is 22180361459. The reversal of 22180361424 is 42416308122.

It is a congruent number.

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, 220489 + ... + 304919.

Almost surely, 2^22180361424 is an apocalyptic number.

22180361424 is a gapful number since it is divisible by the number (24) 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 22180361424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30927103872).

22180361424 is an abundant number, since it is smaller than the sum of its proper divisors (39673846320).

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

22180361424 is a wasteful number, since it uses less digits than its factorization.

22180361424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84876 (or 84870 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

Adding to 22180361424 its reverse (42416308122), we get a palindrome (64596669546).

The spelling of 22180361424 in words is "twenty-two billion, one hundred eighty million, three hundred sixty-one thousand, four hundred twenty-four".