19716480000 has 880 divisors, whose sum is σ = 83900143360. Its totient is φ = 4478976000.

The previous prime is 19716479999. The next prime is 19716480023. The reversal of 19716480000 is 8461791.

19716480000 is a `hidden beast` number, since 1 + 9 + 7 + 1 + 648 + 0 + 0 + 0 + 0 = 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 79 ways as a sum of consecutive naturals, for example, 120959919 + ... + 120960081.

It is an arithmetic number, because the mean of its divisors is an integer number (95341072).

Almost surely, 2^19716480000 is an apocalyptic number.

19716480000 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 19716480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41950071680).

19716480000 is an abundant number, since it is smaller than the sum of its proper divisors (64183663360).

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

19716480000 is an equidigital number, since it uses as much as digits as its factorization.

19716480000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 19716480000 in words is "nineteen billion, seven hundred sixteen million, four hundred eighty thousand".