16215648328 has 32 divisors (see below), whose sum is σ = 33208056000. Its totient is φ = 7361930560.

The previous prime is 16215648307. The next prime is 16215648329. The reversal of 16215648328 is 82384651261.

It is not an unprimeable number, because it can be changed into a prime (16215648329) 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, 35983 + ... + 183646.

It is an arithmetic number, because the mean of its divisors is an integer number (1037751750).

Almost surely, 2^16215648328 is an apocalyptic number.

It is an amenable number.

16215648328 is an abundant number, since it is smaller than the sum of its proper divisors (16992407672).

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

16215648328 is a wasteful number, since it uses less digits than its factorization.

16215648328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220485 (or 220481 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The spelling of 16215648328 in words is "sixteen billion, two hundred fifteen million, six hundred forty-eight thousand, three hundred twenty-eight".