16556021543360 has 112 divisors (see below), whose sum is σ = 42458627113056. Its totient is φ = 6112706998272.

The previous prime is 16556021543359. The next prime is 16556021543407. The reversal of 16556021543360 is 6334512065561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102600662 + ... + 102761898.

It is an arithmetic number, because the mean of its divisors is an integer number (379094884938).

Almost surely, 2^{16556021543360} is an apocalyptic number.

16556021543360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16556021543360 is an abundant number, since it is smaller than the sum of its proper divisors (25902605569696).

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

16556021543360 is a wasteful number, since it uses less digits than its factorization.

16556021543360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185950 (or 185940 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 16556021543360 in words is "sixteen trillion, five hundred fifty-six billion, twenty-one million, five hundred forty-three thousand, three hundred sixty".