216236633832 has 160 divisors (see below), whose sum is σ = 615863476800. Its totient is φ = 70870464000.

The previous prime is 216236633827. The next prime is 216236633849. The reversal of 216236633832 is 238336632612.

216236633832 is a `hidden beast` number, since 2 + 1 + 6 + 2 + 3 + 6 + 633 + 8 + 3 + 2 = 666.

216236633832 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×216236633832³ (a number of 35 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 17430832 + ... + 17443232.

It is an arithmetic number, because the mean of its divisors is an integer number (3849146730).

Almost surely, 2^216236633832 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 216236633832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307931738400).

216236633832 is an abundant number, since it is smaller than the sum of its proper divisors (399626842968).

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

216236633832 is a wasteful number, since it uses less digits than its factorization.

216236633832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12869 (or 12856 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 45.

The spelling of 216236633832 in words is "two hundred sixteen billion, two hundred thirty-six million, six hundred thirty-three thousand, eight hundred thirty-two".