16566511106 has 4 divisors (see below), whose sum is σ = 24849766662. Its totient is φ = 8283255552.

The previous prime is 16566511099. The next prime is 16566511151. The reversal of 16566511106 is 60111566561.

16566511106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16265176225 + 301334881 = 127535^2 + 17359^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16566511106.

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, 4141627775 + ... + 4141627778.

Almost surely, 2^16566511106 is an apocalyptic number.

16566511106 is a deficient number, since it is larger than the sum of its proper divisors (8283255556).

16566511106 is an equidigital number, since it uses as much as digits as its factorization.

16566511106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283255555.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 16566511106 in words is "sixteen billion, five hundred sixty-six million, five hundred eleven thousand, one hundred six".