16497443545440 has 1152 divisors, whose sum is σ = 65051473600512. Its totient is φ = 3485306880000.

The previous prime is 16497443545397. The next prime is 16497443545459. The reversal of 16497443545440 is 4454534479461.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 959647245 + ... + 959664435.

It is an arithmetic number, because the mean of its divisors is an integer number (56468293056).

Almost surely, 2^{16497443545440} is an apocalyptic number.

16497443545440 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 16497443545440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32525736800256).

16497443545440 is an abundant number, since it is smaller than the sum of its proper divisors (48554030055072).

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

16497443545440 is a wasteful number, since it uses less digits than its factorization.

16497443545440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17316 (or 17297 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 60.

The spelling of 16497443545440 in words is "sixteen trillion, four hundred ninety-seven billion, four hundred forty-three million, five hundred forty-five thousand, four hundred forty".