16385846400 has 960 divisors, whose sum is σ = 75479722560. Its totient is φ = 3400704000.

The previous prime is 16385846387. The next prime is 16385846419. The reversal of 16385846400 is 464858361.

16385846400 is a `hidden beast` number, since 1 + 6 + 3 + 8 + 584 + 64 + 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 (45).

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 119 ways as a sum of consecutive naturals, for example, 19957990 + ... + 19958810.

It is an arithmetic number, because the mean of its divisors is an integer number (78624711).

Almost surely, 2^16385846400 is an apocalyptic number.

16385846400 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 16385846400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739861280).

16385846400 is an abundant number, since it is smaller than the sum of its proper divisors (59093876160).

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

16385846400 is a wasteful number, since it uses less digits than its factorization.

16385846400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 16385846400 in words is "sixteen billion, three hundred eighty-five million, eight hundred forty-six thousand, four hundred".