16447551120 has 640 divisors, whose sum is σ = 76075130880. Its totient is φ = 3154360320.

The previous prime is 16447551097. The next prime is 16447551121. The reversal of 16447551120 is 2115574461.

16447551120 is a `hidden beast` number, since 1 + 64 + 47 + 551 + 1 + 2 + 0 = 666.

16447551120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (16447551121) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 2158357 + ... + 2165963.

It is an arithmetic number, because the mean of its divisors is an integer number (118867392).

Almost surely, 2^16447551120 is an apocalyptic number.

16447551120 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 16447551120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38037565440).

16447551120 is an abundant number, since it is smaller than the sum of its proper divisors (59627579760).

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

16447551120 is a wasteful number, since it uses less digits than its factorization.

16447551120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7660 (or 7648 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The spelling of 16447551120 in words is "sixteen billion, four hundred forty-seven million, five hundred fifty-one thousand, one hundred twenty".