16555504552 has 16 divisors (see below), whose sum is σ = 31098957300. Its totient is φ = 8262449280.

The previous prime is 16555504547. The next prime is 16555504579. The reversal of 16555504552 is 25540555561.

It can be written as a sum of positive squares in 2 ways, for example, as 16354828996 + 200675556 = 127886^2 + 14166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16555504499 and 16555504508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908277 + ... + 1916932.

Almost surely, 2^16555504552 is an apocalyptic number.

It is an amenable number.

16555504552 is a deficient number, since it is larger than the sum of its proper divisors (14543452748).

16555504552 is a wasteful number, since it uses less digits than its factorization.

16555504552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825756 (or 3825752 counting only the distinct ones).

The product of its (nonzero) digits is 750000, while the sum is 43.

The spelling of 16555504552 in words is "sixteen billion, five hundred fifty-five million, five hundred four thousand, five hundred fifty-two".