2166322352 has 20 divisors (see below), whose sum is σ = 4268391240. Its totient is φ = 1064802048.

The previous prime is 2166322349. The next prime is 2166322357. The reversal of 2166322352 is 2532236612.

It is not an unprimeable number, because it can be changed into a prime (2166322357) 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, 1146473 + ... + 1148360.

It is an arithmetic number, because the mean of its divisors is an integer number (213419562).

Almost surely, 2^2166322352 is an apocalyptic number.

It is an amenable number.

2166322352 is a deficient number, since it is larger than the sum of its proper divisors (2102068888).

2166322352 is a wasteful number, since it uses less digits than its factorization.

2166322352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294900 (or 2294894 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 2166322352 is about 46543.7681328016. The cubic root of 2166322352 is about 1293.9207979381.

Adding to 2166322352 its reverse (2532236612), we get a palindrome (4698558964).

The spelling of 2166322352 in words is "two billion, one hundred sixty-six million, three hundred twenty-two thousand, three hundred fifty-two".