16545356800 has 264 divisors, whose sum is σ = 47305416704. Its totient is φ = 5620285440.

The previous prime is 16545356783. The next prime is 16545356801. The reversal of 16545356800 is 865354561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545356801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22758037 + ... + 22758763.

Almost surely, 2^16545356800 is an apocalyptic number.

16545356800 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 16545356800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23652708352).

16545356800 is an abundant number, since it is smaller than the sum of its proper divisors (30760059904).

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

16545356800 is a wasteful number, since it uses less digits than its factorization.

16545356800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 16545356800 in words is "sixteen billion, five hundred forty-five million, three hundred fifty-six thousand, eight hundred".