216411852384 has 360 divisors, whose sum is σ = 797331161088. Its totient is φ = 57075217920.

The previous prime is 216411852353. The next prime is 216411852403. The reversal of 216411852384 is 483258114612.

216411852384 is a `hidden beast` number, since 2 + 1 + 6 + 4 + 118 + 523 + 8 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1585569 + ... + 1716639.

Almost surely, 2^216411852384 is an apocalyptic number.

216411852384 is a gapful number since it is divisible by the number (24) 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 216411852384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398665580544).

216411852384 is an abundant number, since it is smaller than the sum of its proper divisors (580919308704).

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

216411852384 is a wasteful number, since it uses less digits than its factorization.

216411852384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131120 (or 131096 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

Adding to 216411852384 its reverse (483258114612), we get a palindrome (699669966996).

The spelling of 216411852384 in words is "two hundred sixteen billion, four hundred eleven million, eight hundred fifty-two thousand, three hundred eighty-four".