16946704145 has 12 divisors (see below), whose sum is σ = 23656215924. Its totient is φ = 11620596960.

The previous prime is 16946704141. The next prime is 16946704189. The reversal of 16946704145 is 54140764961.

16946704145 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 1816720129 + 15129984016 = 42623^2 + 123004^2 .

It is not a de Polignac number, because 16946704145 - 2² = 16946704141 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16946704145.

It is not an unprimeable number, because it can be changed into a prime (16946704141) 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 11 ways as a sum of consecutive naturals, for example, 34584866 + ... + 34585355.

It is an arithmetic number, because the mean of its divisors is an integer number (1971351327).

Almost surely, 2^16946704145 is an apocalyptic number.

It is an amenable number.

16946704145 is a deficient number, since it is larger than the sum of its proper divisors (6709511779).

16946704145 is an equidigital number, since it uses as much as digits as its factorization.

16946704145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69170240 (or 69170233 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 16946704145 in words is "sixteen billion, nine hundred forty-six million, seven hundred four thousand, one hundred forty-five".