4456394161 has 6 divisors (see below), whose sum is σ = 4733955350. Its totient is φ = 4194253056.

The previous prime is 4456394147. The next prime is 4456394167. The reversal of 4456394161 is 1614936544.

It can be written as a sum of positive squares in 3 ways, for example, as 1372257936 + 3084136225 = 37044^2 + 55535^2 .

It is not a de Polignac number, because 4456394161 - 2¹¹ = 4456392113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4456394167) 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 5 ways as a sum of consecutive naturals, for example, 7709736 + ... + 7710313.

Almost surely, 2^4456394161 is an apocalyptic number.

It is an amenable number.

4456394161 is a deficient number, since it is larger than the sum of its proper divisors (277561189).

4456394161 is a wasteful number, since it uses less digits than its factorization.

4456394161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15420083 (or 15420066 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The square root of 4456394161 is about 66756.2293797365. The cubic root of 4456394161 is about 1645.6135910017.

The spelling of 4456394161 in words is "four billion, four hundred fifty-six million, three hundred ninety-four thousand, one hundred sixty-one".