6423330816 has 360 divisors, whose sum is σ = 21809715200. Its totient is φ = 1820786688.

The previous prime is 6423330791. The next prime is 6423330821. The reversal of 6423330816 is 6180333246.

6423330816 is a `hidden beast` number, since 642 + 3 + 3 + 3 + 0 + 8 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50577345 + ... + 50577471.

Almost surely, 2^6423330816 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 6423330816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10904857600).

6423330816 is an abundant number, since it is smaller than the sum of its proper divisors (15386384384).

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

6423330816 is an equidigital number, since it uses as much as digits as its factorization.

6423330816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 6423330816 is about 80145.6849493471. The cubic root of 6423330816 is about 1858.8888819900. Note that the first 5 decimals are identical.

The spelling of 6423330816 in words is "six billion, four hundred twenty-three million, three hundred thirty thousand, eight hundred sixteen".