1327664216 has 64 divisors (see below), whose sum is σ = 2720044800. Its totient is φ = 605404800.

The previous prime is 1327664209. The next prime is 1327664237. The reversal of 1327664216 is 6124667231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 1327664216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462626 + ... + 465486.

It is an arithmetic number, because the mean of its divisors is an integer number (42500700).

Almost surely, 2^1327664216 is an apocalyptic number.

It is an amenable number.

1327664216 is an abundant number, since it is smaller than the sum of its proper divisors (1392380584).

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

1327664216 is a wasteful number, since it uses less digits than its factorization.

1327664216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000 (or 2996 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 1327664216 is about 36437.1268900280. The cubic root of 1327664216 is about 1099.0802824719.

The spelling of 1327664216 in words is "one billion, three hundred twenty-seven million, six hundred sixty-four thousand, two hundred sixteen".