22111542160 has 80 divisors (see below), whose sum is σ = 51990034032. Its totient is φ = 8744960000.

The previous prime is 22111542157. The next prime is 22111542161. The reversal of 22111542160 is 6124511122.

It can be written as a sum of positive squares in 8 ways, for example, as 4927478416 + 17184063744 = 70196^2 + 131088^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (22111542161) 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, 7892760 + ... + 7895560.

Almost surely, 2^22111542160 is an apocalyptic number.

22111542160 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 22111542160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25995017016).

22111542160 is an abundant number, since it is smaller than the sum of its proper divisors (29878491872).

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

22111542160 is a wasteful number, since it uses less digits than its factorization.

22111542160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3892 (or 3886 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 22111542160 in words is "twenty-two billion, one hundred eleven million, five hundred forty-two thousand, one hundred sixty".