6443574161 has 16 divisors (see below), whose sum is σ = 6858094080. Its totient is φ = 6043299840.

The previous prime is 6443574127. The next prime is 6443574169. The reversal of 6443574161 is 1614753446.

It is a cyclic number.

It is not a de Polignac number, because 6443574161 - 2⁶ = 6443574097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6443574169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283850 + ... + 305708.

It is an arithmetic number, because the mean of its divisors is an integer number (428630880).

Almost surely, 2^6443574161 is an apocalyptic number.

It is an amenable number.

6443574161 is a deficient number, since it is larger than the sum of its proper divisors (414519919).

6443574161 is a wasteful number, since it uses less digits than its factorization.

6443574161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22184.

The product of its digits is 241920, while the sum is 41.

The square root of 6443574161 is about 80271.8765259664. The cubic root of 6443574161 is about 1860.8396179463.

The spelling of 6443574161 in words is "six billion, four hundred forty-three million, five hundred seventy-four thousand, one hundred sixty-one".