16566427075 has 12 divisors (see below), whose sum is σ = 22409858088. Its totient is φ = 12048310400.

The previous prime is 16566427069. The next prime is 16566427079. The reversal of 16566427075 is 57072466561.

It is not a de Polignac number, because 16566427075 - 2³ = 16566427067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16566427079) 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 11 ways as a sum of consecutive naturals, for example, 30120502 + ... + 30121051.

It is an arithmetic number, because the mean of its divisors is an integer number (1867488174).

Almost surely, 2^16566427075 is an apocalyptic number.

16566427075 is a deficient number, since it is larger than the sum of its proper divisors (5843431013).

16566427075 is a wasteful number, since it uses less digits than its factorization.

16566427075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60241574 (or 60241569 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 16566427075 in words is "sixteen billion, five hundred sixty-six million, four hundred twenty-seven thousand, seventy-five".