16378748568 has 288 divisors, whose sum is σ = 56675773440. Its totient is φ = 4179651840.

The previous prime is 16378748567. The next prime is 16378748579. The reversal of 16378748568 is 86584787361.

16378748568 is a `hidden beast` number, since 1 + 63 + 7 + 8 + 7 + 4 + 8 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378748567) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2637355 + ... + 2643557.

It is an arithmetic number, because the mean of its divisors is an integer number (196790880).

Almost surely, 2^16378748568 is an apocalyptic number.

16378748568 is a gapful number since it is divisible by the number (18) 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 16378748568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28337886720).

16378748568 is an abundant number, since it is smaller than the sum of its proper divisors (40297024872).

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

16378748568 is a wasteful number, since it uses less digits than its factorization.

16378748568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279 (or 6259 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 16378748568 in words is "sixteen billion, three hundred seventy-eight million, seven hundred forty-eight thousand, five hundred sixty-eight".