22514522240 has 128 divisors (see below), whose sum is σ = 62205148800. Its totient is φ = 7632396288.

The previous prime is 22514522227. The next prime is 22514522243. The reversal of 22514522240 is 4222541522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (22514522243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370487 + ... + 426953.

It is an arithmetic number, because the mean of its divisors is an integer number (485977725).

Almost surely, 2^22514522240 is an apocalyptic number.

22514522240 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 22514522240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31102574400).

22514522240 is an abundant number, since it is smaller than the sum of its proper divisors (39690626560).

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

22514522240 is an equidigital number, since it uses as much as digits as its factorization.

22514522240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56582 (or 56570 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 22514522240 in words is "twenty-two billion, five hundred fourteen million, five hundred twenty-two thousand, two hundred forty".