216847869201 has 16 divisors (see below), whose sum is σ = 321270768000. Its totient is φ = 144558646704.

The previous prime is 216847869191. The next prime is 216847869233. The reversal of 216847869201 is 102968748612.

It is a happy number.

216847869201 is a `hidden beast` number, since 2 + 168 + 478 + 6 + 9 + 2 + 0 + 1 = 666.

216847869201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216847869201 - 2¹⁰ = 216847868177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216847869001) by changing a digit.

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, 460155 + ... + 803391.

It is an arithmetic number, because the mean of its divisors is an integer number (20079423000).

Almost surely, 2^216847869201 is an apocalyptic number.

It is an amenable number.

216847869201 is a deficient number, since it is larger than the sum of its proper divisors (104422898799).

216847869201 is a wasteful number, since it uses less digits than its factorization.

216847869201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366645 (or 366639 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 216847869201 in words is "two hundred sixteen billion, eight hundred forty-seven million, eight hundred sixty-nine thousand, two hundred one".