22043312616 has 128 divisors (see below), whose sum is σ = 63204261120. Its totient is φ = 6346420224.

The previous prime is 22043312609. The next prime is 22043312617. The reversal of 22043312616 is 61621334022.

It is not an unprimeable number, because it can be changed into a prime (22043312617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 905581 + ... + 929603.

It is an arithmetic number, because the mean of its divisors is an integer number (493783290).

Almost surely, 2^22043312616 is an apocalyptic number.

22043312616 is a gapful number since it is divisible by the number (26) 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 22043312616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31602130560).

22043312616 is an abundant number, since it is smaller than the sum of its proper divisors (41160948504).

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

22043312616 is a wasteful number, since it uses less digits than its factorization.

22043312616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24235 (or 24231 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 22043312616 its reverse (61621334022), we get a palindrome (83664646638).

The spelling of 22043312616 in words is "twenty-two billion, forty-three million, three hundred twelve thousand, six hundred sixteen".