216522849060 has 384 divisors, whose sum is σ = 843260544000. Its totient is φ = 44973121536.

The previous prime is 216522849047. The next prime is 216522849061. The reversal of 216522849060 is 60948225612.

216522849060 is a `hidden beast` number, since 21 + 6 + 522 + 8 + 49 + 0 + 60 = 666.

216522849060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 216522848997 and 216522849015.

It is not an unprimeable number, because it can be changed into a prime (216522849061) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1805446 + ... + 1921634.

It is an arithmetic number, because the mean of its divisors is an integer number (2195991000).

Almost surely, 2^216522849060 is an apocalyptic number.

216522849060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216522849060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421630272000).

216522849060 is an abundant number, since it is smaller than the sum of its proper divisors (626737694940).

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

216522849060 is a wasteful number, since it uses less digits than its factorization.

216522849060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116260 (or 116252 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 216522849060 in words is "two hundred sixteen billion, five hundred twenty-two million, eight hundred forty-nine thousand, sixty".