216830562172 has 24 divisors (see below), whose sum is σ = 433782358016. Its totient is φ = 92901405168.

The previous prime is 216830562127. The next prime is 216830562197. The reversal of 216830562172 is 271265038612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980328 + ... + 1180975.

Almost surely, 2^216830562172 is an apocalyptic number.

It is an amenable number.

216830562172 is an abundant number, since it is smaller than the sum of its proper divisors (216951795844).

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

216830562172 is a wasteful number, since it uses less digits than its factorization.

216830562172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164897 (or 2164895 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 216830562172 in words is "two hundred sixteen billion, eight hundred thirty million, five hundred sixty-two thousand, one hundred seventy-two".