16378887916800 has 2160 divisors, whose sum is σ = 65616157297152. Its totient is φ = 4020328857600.

The previous prime is 16378887916753. The next prime is 16378887916817. The reversal of 16378887916800 is 861978887361.

16378887916800 is a `hidden beast` number, since 16 + 378 + 8 + 87 + 9 + 168 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 60438700665 + ... + 60438700935.

Almost surely, 2^{16378887916800} is an apocalyptic number.

16378887916800 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 16378887916800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32808078648576).

16378887916800 is an abundant number, since it is smaller than the sum of its proper divisors (49237269380352).

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

16378887916800 is a wasteful number, since it uses less digits than its factorization.

16378887916800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 72.

The spelling of 16378887916800 in words is "sixteen trillion, three hundred seventy-eight billion, eight hundred eighty-seven million, nine hundred sixteen thousand, eight hundred".