2165321422 has 8 divisors (see below), whose sum is σ = 3543253272. Its totient is φ = 984237000.

The previous prime is 2165321383. The next prime is 2165321423. The reversal of 2165321422 is 2241235612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165321423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49211829 + ... + 49211872.

It is an arithmetic number, because the mean of its divisors is an integer number (442906659).

Almost surely, 2^2165321422 is an apocalyptic number.

2165321422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2165321422 is a deficient number, since it is larger than the sum of its proper divisors (1377931850).

2165321422 is a wasteful number, since it uses less digits than its factorization.

2165321422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98423714.

The product of its digits is 5760, while the sum is 28.

The square root of 2165321422 is about 46533.0143231663. The cubic root of 2165321422 is about 1293.7214857011.

The spelling of 2165321422 in words is "two billion, one hundred sixty-five million, three hundred twenty-one thousand, four hundred twenty-two".