322665216 has 72 divisors (see below), whose sum is σ = 867310080. Its totient is φ = 106484736.

The previous prime is 322665193. The next prime is 322665247. The reversal of 322665216 is 612566223.

It is a super-2 number, since 2×322665216² = 208225683232653312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77065 + ... + 81143.

Almost surely, 2^322665216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322665216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433655040).

322665216 is an abundant number, since it is smaller than the sum of its proper divisors (544644864).

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

322665216 is a wasteful number, since it uses less digits than its factorization.

322665216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201 (or 4187 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 322665216 is about 17962.8844008973. The cubic root of 322665216 is about 685.8840706557.

The spelling of 322665216 in words is "three hundred twenty-two million, six hundred sixty-five thousand, two hundred sixteen".