22160655552 has 112 divisors (see below), whose sum is σ = 67927841792. Its totient is φ = 6244853760.

The previous prime is 22160655521. The next prime is 22160655553. The reversal of 22160655552 is 25555606122.

It is a tau number, because it is divible by the number of its divisors (112).

It is a self number, because there is not a number n which added to its sum of digits gives 22160655552.

It is not an unprimeable number, because it can be changed into a prime (22160655553) 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, 14824 + ... + 211047.

Almost surely, 2^22160655552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22160655552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33963920896).

22160655552 is an abundant number, since it is smaller than the sum of its proper divisors (45767186240).

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

22160655552 is a wasteful number, since it uses less digits than its factorization.

22160655552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225966 (or 225956 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 22160655552 in words is "twenty-two billion, one hundred sixty million, six hundred fifty-five thousand, five hundred fifty-two".