16556773111 has 8 divisors (see below), whose sum is σ = 16724817648. Its totient is φ = 16389360000.

The previous prime is 16556773091. The next prime is 16556773133. The reversal of 16556773111 is 11137765561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16556773111 - 2⁹ = 16556772599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556773711) 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 7 ways as a sum of consecutive naturals, for example, 105060 + ... + 210121.

It is an arithmetic number, because the mean of its divisors is an integer number (2090602206).

Almost surely, 2^16556773111 is an apocalyptic number.

16556773111 is a deficient number, since it is larger than the sum of its proper divisors (168044537).

16556773111 is a wasteful number, since it uses less digits than its factorization.

16556773111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315713.

The product of its digits is 132300, while the sum is 43.

The spelling of 16556773111 in words is "sixteen billion, five hundred fifty-six million, seven hundred seventy-three thousand, one hundred eleven".