2222161632 has 72 divisors (see below), whose sum is σ = 6323957640. Its totient is φ = 740171520.

The previous prime is 2222161607. The next prime is 2222161633. The reversal of 2222161632 is 2361612222.

It is a happy number.

2222161632 is a `hidden beast` number, since 2 + 2 + 2 + 21 + 6 + 1 + 632 = 666.

2222161632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2222161596 and 2222161605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222161633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625782 + ... + 629322.

It is an arithmetic number, because the mean of its divisors is an integer number (87832745).

Almost surely, 2^2222161632 is an apocalyptic number.

It is an amenable number.

2222161632 is an abundant number, since it is smaller than the sum of its proper divisors (4101796008).

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

2222161632 is a wasteful number, since it uses less digits than its factorization.

2222161632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5725 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 2222161632 is about 47139.8094183674. The cubic root of 2222161632 is about 1304.9440201468.

Adding to 2222161632 its reverse (2361612222), we get a palindrome (4583773854).

The spelling of 2222161632 in words is "two billion, two hundred twenty-two million, one hundred sixty-one thousand, six hundred thirty-two".