16556741140 has 12 divisors (see below), whose sum is σ = 34769156436. Its totient is φ = 6622696448.

The previous prime is 16556741059. The next prime is 16556741143. The reversal of 16556741140 is 4114765561.

It can be written as a sum of positive squares in 2 ways, for example, as 4389327504 + 12167413636 = 66252^2 + 110306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16556741093 and 16556741102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556741143) 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 3 ways as a sum of consecutive naturals, for example, 413918509 + ... + 413918548.

It is an arithmetic number, because the mean of its divisors is an integer number (2897429703).

Almost surely, 2^16556741140 is an apocalyptic number.

16556741140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16556741140 is an abundant number, since it is smaller than the sum of its proper divisors (18212415296).

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

16556741140 is a wasteful number, since it uses less digits than its factorization.

16556741140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827837066 (or 827837064 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 16556741140 in words is "sixteen billion, five hundred fifty-six million, seven hundred forty-one thousand, one hundred forty".