16555005536 has 12 divisors (see below), whose sum is σ = 32592667212. Its totient is φ = 8277502752.

The previous prime is 16555005491. The next prime is 16555005541. The reversal of 16555005536 is 63550055561.

It is a junction number, because it is equal to n+sod(n) for n = 16555005493 and 16555005502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258671930 + ... + 258671993.

It is an arithmetic number, because the mean of its divisors is an integer number (2716055601).

Almost surely, 2^16555005536 is an apocalyptic number.

16555005536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16555005536 is a deficient number, since it is larger than the sum of its proper divisors (16037661676).

16555005536 is an equidigital number, since it uses as much as digits as its factorization.

16555005536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517343933 (or 517343925 counting only the distinct ones).

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 16555005536 in words is "sixteen billion, five hundred fifty-five million, five thousand, five hundred thirty-six".