16016561056 has 12 divisors (see below), whose sum is σ = 31532604642. Its totient is φ = 8008280512.

The previous prime is 16016561039. The next prime is 16016561087. The reversal of 16016561056 is 65016561061.

16016561056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8839760400 + 7176800656 = 94020^2 + 84716^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250258735 + ... + 250258798.

Almost surely, 2^16016561056 is an apocalyptic number.

16016561056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16016561056 is a deficient number, since it is larger than the sum of its proper divisors (15516043586).

16016561056 is an equidigital number, since it uses as much as digits as its factorization.

16016561056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500517543 (or 500517535 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 16016561056 in words is "sixteen billion, sixteen million, five hundred sixty-one thousand, fifty-six".