16543497760 has 48 divisors (see below), whose sum is σ = 40431749400. Its totient is φ = 6389211136.

The previous prime is 16543497743. The next prime is 16543497791. The reversal of 16543497760 is 6779434561.

It can be written as a sum of positive squares in 4 ways, for example, as 14822575504 + 1720922256 = 121748^2 + 41484^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16543497698 and 16543497707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778065 + ... + 1787344.

Almost surely, 2^16543497760 is an apocalyptic number.

16543497760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16543497760 is an abundant number, since it is smaller than the sum of its proper divisors (23888251640).

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

16543497760 is a wasteful number, since it uses less digits than its factorization.

16543497760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565453 (or 3565445 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 16543497760 in words is "sixteen billion, five hundred forty-three million, four hundred ninety-seven thousand, seven hundred sixty".