216066604164 has 24 divisors (see below), whose sum is σ = 515879955360. Its totient is φ = 70347266304.

The previous prime is 216066604157. The next prime is 216066604183. The reversal of 216066604164 is 461406660612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209366349 + ... + 209367380.

It is an arithmetic number, because the mean of its divisors is an integer number (21494998140).

Almost surely, 2^216066604164 is an apocalyptic number.

It is an amenable number.

216066604164 is an abundant number, since it is smaller than the sum of its proper divisors (299813351196).

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

216066604164 is a wasteful number, since it uses less digits than its factorization.

216066604164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418733779 (or 418733777 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 216066604164 in words is "two hundred sixteen billion, sixty-six million, six hundred four thousand, one hundred sixty-four".