16378481414864 has 40 divisors (see below), whose sum is σ = 31761419639040. Its totient is φ = 8181988800128.

The previous prime is 16378481414861. The next prime is 16378481414993. The reversal of 16378481414864 is 46841418487361.

It is a self number, because there is not a number n which added to its sum of digits gives 16378481414864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378481414861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97323977 + ... + 97492119.

It is an arithmetic number, because the mean of its divisors is an integer number (794035490976).

Almost surely, 2^{16378481414864} is an apocalyptic number.

It is an amenable number.

16378481414864 is a deficient number, since it is larger than the sum of its proper divisors (15382938224176).

16378481414864 is a wasteful number, since it uses less digits than its factorization.

16378481414864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173507 (or 173501 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 65.

The spelling of 16378481414864 in words is "sixteen trillion, three hundred seventy-eight billion, four hundred eighty-one million, four hundred fourteen thousand, eight hundred sixty-four".