216472546889872 has 320 divisors, whose sum is σ = 548604587059200. Its totient is φ = 80300212420608.

The previous prime is 216472546889867. The next prime is 216472546889873. The reversal of 216472546889872 is 278988645274612.

It is a junction number, because it is equal to n+sod(n) for n = 216472546889792 and 216472546889801.

It is not an unprimeable number, because it can be changed into a prime (216472546889873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9529087858 + ... + 9529110574.

It is an arithmetic number, because the mean of its divisors is an integer number (1714389334560).

Almost surely, 2^{216472546889872} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216472546889872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274302293529600).

216472546889872 is an abundant number, since it is smaller than the sum of its proper divisors (332132040169328).

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

216472546889872 is a wasteful number, since it uses less digits than its factorization.

216472546889872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24178 (or 24172 counting only the distinct ones).

The product of its digits is 5202247680, while the sum is 79.

The spelling of 216472546889872 in words is "two hundred sixteen trillion, four hundred seventy-two billion, five hundred forty-six million, eight hundred eighty-nine thousand, eight hundred seventy-two".