216671169192 has 64 divisors (see below), whose sum is σ = 545020116480. Its totient is φ = 71778423552.

The previous prime is 216671169163. The next prime is 216671169227. The reversal of 216671169192 is 291961176612.

It is a happy number.

216671169192 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12601033 + ... + 12618215.

It is an arithmetic number, because the mean of its divisors is an integer number (8515939320).

Almost surely, 2^216671169192 is an apocalyptic number.

It is an amenable number.

216671169192 is an abundant number, since it is smaller than the sum of its proper divisors (328348947288).

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

216671169192 is a wasteful number, since it uses less digits than its factorization.

216671169192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20402 (or 20398 counting only the distinct ones).

The product of its digits is 489888, while the sum is 51.

The spelling of 216671169192 in words is "two hundred sixteen billion, six hundred seventy-one million, one hundred sixty-nine thousand, one hundred ninety-two".