16565448546 has 12 divisors (see below), whose sum is σ = 35891805222. Its totient is φ = 5521816176.

The previous prime is 16565448481. The next prime is 16565448551. The reversal of 16565448546 is 64584456561.

16565448546 is a `hidden beast` number, since 1 + 6 + 5 + 6 + 54 + 48 + 546 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11318619321 + 5246829225 = 106389^2 + 72435^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16565448492 and 16565448501.

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 5 ways as a sum of consecutive naturals, for example, 460151331 + ... + 460151366.

Almost surely, 2^16565448546 is an apocalyptic number.

16565448546 is an abundant number, since it is smaller than the sum of its proper divisors (19326356676).

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

16565448546 is a wasteful number, since it uses less digits than its factorization.

16565448546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920302705 (or 920302702 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 16565448546 in words is "sixteen billion, five hundred sixty-five million, four hundred forty-eight thousand, five hundred forty-six".