2161063422 has 64 divisors (see below), whose sum is σ = 5495270400. Its totient is φ = 616675680.

The previous prime is 2161063391. The next prime is 2161063433. The reversal of 2161063422 is 2243601612.

2161063422 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 0 + 634 + 22 = 666.

It is a super-2 number, since 2×2161063422² = 9340390227812700168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344272 + ... + 350492.

It is an arithmetic number, because the mean of its divisors is an integer number (85863600).

Almost surely, 2^2161063422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2161063422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747635200).

2161063422 is an abundant number, since it is smaller than the sum of its proper divisors (3334206978).

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

2161063422 is a wasteful number, since it uses less digits than its factorization.

2161063422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7158 (or 7152 counting only the distinct ones).

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

The square root of 2161063422 is about 46487.2393458678. The cubic root of 2161063422 is about 1292.8729156271.

The spelling of 2161063422 in words is "two billion, one hundred sixty-one million, sixty-three thousand, four hundred twenty-two".