16560561080 has 64 divisors (see below), whose sum is σ = 43062840000. Its totient is φ = 5614101504.

The previous prime is 16560561029. The next prime is 16560561089. The reversal of 16560561080 is 8016506561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16560561089) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 307355 + ... + 357194.

It is an arithmetic number, because the mean of its divisors is an integer number (672856875).

Almost surely, 2^16560561080 is an apocalyptic number.

16560561080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16560561080 is an abundant number, since it is smaller than the sum of its proper divisors (26502278920).

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

16560561080 is a wasteful number, since it uses less digits than its factorization.

16560561080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664656 (or 664652 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 16560561080 in words is "sixteen billion, five hundred sixty million, five hundred sixty-one thousand, eighty".