9441440161 has 8 divisors (see below), whose sum is σ = 9997697160. Its totient is φ = 8885280768.

The previous prime is 9441440143. The next prime is 9441440167. The reversal of 9441440161 is 1610441449.

It can be written as a sum of positive squares in 4 ways, for example, as 3730766400 + 5710673761 = 61080^2 + 75569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9441440161 - 2¹⁷ = 9441309089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9441440167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292305 + ... + 322993.

It is an arithmetic number, because the mean of its divisors is an integer number (1249712145).

Almost surely, 2^9441440161 is an apocalyptic number.

It is an amenable number.

9441440161 is a deficient number, since it is larger than the sum of its proper divisors (556256999).

9441440161 is a wasteful number, since it uses less digits than its factorization.

9441440161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48803.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 9441440161 is about 97167.0734405436. The cubic root of 9441440161 is about 2113.5510803019.

The spelling of 9441440161 in words is "nine billion, four hundred forty-one million, four hundred forty thousand, one hundred sixty-one".