16651336320 has 256 divisors, whose sum is σ = 59164732800. Its totient is φ = 4425965568.

The previous prime is 16651336309. The next prime is 16651336397. The reversal of 16651336320 is 2363315661.

16651336320 is a `hidden beast` number, since 1 + 6 + 6 + 5 + 13 + 3 + 632 + 0 = 666.

16651336320 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-2 number, since 2×16651336320² (a number of 21 digits) contains 22 as substring.

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

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 31 ways as a sum of consecutive naturals, for example, 5994772 + ... + 5997548.

Almost surely, 2^16651336320 is an apocalyptic number.

16651336320 is a gapful number since it is divisible by the number (10) 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 16651336320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29582366400).

16651336320 is an abundant number, since it is smaller than the sum of its proper divisors (42513396480).

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

16651336320 is a wasteful number, since it uses less digits than its factorization.

16651336320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3152 (or 3134 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 16651336320 in words is "sixteen billion, six hundred fifty-one million, three hundred thirty-six thousand, three hundred twenty".