16566829074 has 40 divisors (see below), whose sum is σ = 37130260860. Its totient is φ = 5521042944.

The previous prime is 16566829073. The next prime is 16566829121. The reversal of 16566829074 is 47092866561.

16566829074 is a `hidden beast` number, since 1 + 6 + 566 + 8 + 2 + 9 + 0 + 74 = 666.

16566829074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16385792049 + 181037025 = 128007^2 + 13455^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16566829074.

It is not an unprimeable number, because it can be changed into a prime (16566829073) by changing a digit.

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 in 19 ways as a sum of consecutive naturals, for example, 981942 + ... + 998670.

Almost surely, 2^16566829074 is an apocalyptic number.

16566829074 is an abundant number, since it is smaller than the sum of its proper divisors (20563431786).

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

16566829074 is a wasteful number, since it uses less digits than its factorization.

16566829074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22856 (or 22847 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 16566829074 in words is "sixteen billion, five hundred sixty-six million, eight hundred twenty-nine thousand, seventy-four".