16510556561060 has 12 divisors (see below), whose sum is σ = 34672168778268. Its totient is φ = 6604222624416.

The previous prime is 16510556561027. The next prime is 16510556561069. The reversal of 16510556561060 is 6016565501561.

It can be written as a sum of positive squares in 2 ways, for example, as 3196464833956 + 13314091727104 = 1787866^2 + 3648848^2 .

It is a super-2 number, since 2×16510556561060² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16510556560996 and 16510556561014.

It is not an unprimeable number, because it can be changed into a prime (16510556561069) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 412763914007 + ... + 412763914046.

It is an arithmetic number, because the mean of its divisors is an integer number (2889347398189).

Almost surely, 2^{16510556561060} is an apocalyptic number.

16510556561060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16510556561060 is an abundant number, since it is smaller than the sum of its proper divisors (18161612217208).

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

16510556561060 is a wasteful number, since it uses less digits than its factorization.

16510556561060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825527828062 (or 825527828060 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 47.

The spelling of 16510556561060 in words is "sixteen trillion, five hundred ten billion, five hundred fifty-six million, five hundred sixty-one thousand, sixty".