16544453376 has 288 divisors, whose sum is σ = 51449932800. Its totient is φ = 4666429440.

The previous prime is 16544453371. The next prime is 16544453377. The reversal of 16544453376 is 67335444561.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (16544453371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9469335 + ... + 9471081.

It is an arithmetic number, because the mean of its divisors is an integer number (178645600).

Almost surely, 2^16544453376 is an apocalyptic number.

16544453376 is a gapful number since it is divisible by the number (16) 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 16544453376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25724966400).

16544453376 is an abundant number, since it is smaller than the sum of its proper divisors (34905479424).

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

16544453376 is a wasteful number, since it uses less digits than its factorization.

16544453376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855 (or 1841 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 48.

The spelling of 16544453376 in words is "sixteen billion, five hundred forty-four million, four hundred fifty-three thousand, three hundred seventy-six".