2161652422 has 4 divisors (see below), whose sum is σ = 3242478636. Its totient is φ = 1080826210.

The previous prime is 2161652417. The next prime is 2161652483. The reversal of 2161652422 is 2242561612.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540413104 + ... + 540413107.

It is an arithmetic number, because the mean of its divisors is an integer number (810619659).

Almost surely, 2^2161652422 is an apocalyptic number.

2161652422 is a deficient number, since it is larger than the sum of its proper divisors (1080826214).

2161652422 is a wasteful number, since it uses less digits than its factorization.

2161652422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080826213.

The product of its digits is 11520, while the sum is 31.

The square root of 2161652422 is about 46493.5739860897. The cubic root of 2161652422 is about 1292.9903628936.

The spelling of 2161652422 in words is "two billion, one hundred sixty-one million, six hundred fifty-two thousand, four hundred twenty-two".