22720349184 has 264 divisors, whose sum is σ = 66349329120. Its totient is φ = 6908608512.

The previous prime is 22720349173. The next prime is 22720349189. The reversal of 22720349184 is 48194302722.

It is not an unprimeable number, because it can be changed into a prime (22720349189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55550772 + ... + 55551180.

Almost surely, 2^22720349184 is an apocalyptic number.

22720349184 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 22720349184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33174664560).

22720349184 is an abundant number, since it is smaller than the sum of its proper divisors (43628979936).

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

22720349184 is a wasteful number, since it uses less digits than its factorization.

22720349184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 22720349184 in words is "twenty-two billion, seven hundred twenty million, three hundred forty-nine thousand, one hundred eighty-four".