216363546 has 48 divisors (see below), whose sum is σ = 538512000. Its totient is φ = 61500384.

The previous prime is 216363529. The next prime is 216363547. The reversal of 216363546 is 645363612.

216363546 is a `hidden beast` number, since 2 + 16 + 3 + 635 + 4 + 6 = 666.

216363546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 216363546.

It is not an unprimeable number, because it can be changed into a prime (216363547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20760 + ... + 29388.

It is an arithmetic number, because the mean of its divisors is an integer number (11219000).

Almost surely, 2^216363546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216363546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269256000).

216363546 is an abundant number, since it is smaller than the sum of its proper divisors (322148454).

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

216363546 is a wasteful number, since it uses less digits than its factorization.

216363546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8843 (or 8840 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 216363546 is about 14709.3013430278. The cubic root of 216363546 is about 600.3364279918.

The spelling of 216363546 in words is "two hundred sixteen million, three hundred sixty-three thousand, five hundred forty-six".