321662116 has 24 divisors (see below), whose sum is σ = 572606496. Its totient is φ = 158084160.

The previous prime is 321662111. The next prime is 321662149. The reversal of 321662116 is 611266123.

It is not an unprimeable number, because it can be changed into a prime (321662111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53200 + ... + 58936.

It is an arithmetic number, because the mean of its divisors is an integer number (23858604).

Almost surely, 2^321662116 is an apocalyptic number.

It is an amenable number.

321662116 is a deficient number, since it is larger than the sum of its proper divisors (250944380).

321662116 is a wasteful number, since it uses less digits than its factorization.

321662116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979 (or 5977 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 321662116 is about 17934.9412042527. The cubic root of 321662116 is about 685.1725751984.

The spelling of 321662116 in words is "three hundred twenty-one million, six hundred sixty-two thousand, one hundred sixteen".