16995456720000 has 960 divisors, whose sum is σ = 68897465128800. Its totient is φ = 4120047360000.

The previous prime is 16995456719993. The next prime is 16995456720019. The reversal of 16995456720000 is 2765459961.

16995456720000 is a `hidden beast` number, since 1 + 6 + 9 + 9 + 54 + 567 + 20 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 119 ways as a sum of consecutive naturals, for example, 261327487 + ... + 261392513.

Almost surely, 2^{16995456720000} is an apocalyptic number.

16995456720000 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 16995456720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34448732564400).

16995456720000 is an abundant number, since it is smaller than the sum of its proper divisors (51902008408800).

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

16995456720000 is an equidigital number, since it uses as much as digits as its factorization.

16995456720000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65092 (or 65048 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 54.

The spelling of 16995456720000 in words is "sixteen trillion, nine hundred ninety-five billion, four hundred fifty-six million, seven hundred twenty thousand".