22603123218 has 64 divisors (see below), whose sum is σ = 50430360960. Its totient is φ = 6705925632.

The previous prime is 22603123187. The next prime is 22603123223. The reversal of 22603123218 is 81232130622.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1773846 + ... + 1786542.

It is an arithmetic number, because the mean of its divisors is an integer number (787974390).

Almost surely, 2^22603123218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22603123218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25215180480).

22603123218 is an abundant number, since it is smaller than the sum of its proper divisors (27827237742).

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

22603123218 is a wasteful number, since it uses less digits than its factorization.

22603123218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13531.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 22603123218 in words is "twenty-two billion, six hundred three million, one hundred twenty-three thousand, two hundred eighteen".