5444166161 has 4 divisors (see below), whose sum is σ = 6221904192. Its totient is φ = 4666428132.

The previous prime is 5444166127. The next prime is 5444166163. The reversal of 5444166161 is 1616614445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5444166161 - 2⁶ = 5444166097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5444166163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388869005 + ... + 388869018.

It is an arithmetic number, because the mean of its divisors is an integer number (1555476048).

Almost surely, 2^5444166161 is an apocalyptic number.

It is an amenable number.

5444166161 is a deficient number, since it is larger than the sum of its proper divisors (777738031).

5444166161 is an equidigital number, since it uses as much as digits as its factorization.

5444166161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777738030.

The product of its digits is 69120, while the sum is 38.

The square root of 5444166161 is about 73784.5929784803. The cubic root of 5444166161 is about 1759.1807224444.

The spelling of 5444166161 in words is "five billion, four hundred forty-four million, one hundred sixty-six thousand, one hundred sixty-one".