16327578216 has 32 divisors (see below), whose sum is σ = 41140362240. Its totient is φ = 5399670528.

The previous prime is 16327578181. The next prime is 16327578217. The reversal of 16327578216 is 61287572361.

It is not an unprimeable number, because it can be changed into a prime (16327578217) 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, 2675361 + ... + 2681456.

It is an arithmetic number, because the mean of its divisors is an integer number (1285636320).

Almost surely, 2^16327578216 is an apocalyptic number.

It is an amenable number.

16327578216 is an abundant number, since it is smaller than the sum of its proper divisors (24812784024).

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

16327578216 is a wasteful number, since it uses less digits than its factorization.

16327578216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356953 (or 5356949 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The spelling of 16327578216 in words is "sixteen billion, three hundred twenty-seven million, five hundred seventy-eight thousand, two hundred sixteen".