22543120350 has 108 divisors (see below), whose sum is σ = 61579583208. Its totient is φ = 5912510400.

The previous prime is 22543120339. The next prime is 22543120409. The reversal of 22543120350 is 5302134522.

It is a happy number.

22543120350 is a `hidden beast` number, since 2 + 25 + 431 + 203 + 5 + 0 = 666.

It is a super-2 number, since 2×22543120350² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1667719 + ... + 1681181.

It is an arithmetic number, because the mean of its divisors is an integer number (570181326).

Almost surely, 2^22543120350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22543120350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30789791604).

22543120350 is an abundant number, since it is smaller than the sum of its proper divisors (39036462858).

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

22543120350 is a wasteful number, since it uses less digits than its factorization.

22543120350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13603 (or 13534 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 22543120350 its reverse (5302134522), we get a palindrome (27845254872).

The spelling of 22543120350 in words is "twenty-two billion, five hundred forty-three million, one hundred twenty thousand, three hundred fifty".