6446244161 has 8 divisors (see below), whose sum is σ = 7800497280. Its totient is φ = 5200331328.

The previous prime is 6446244151. The next prime is 6446244163. The reversal of 6446244161 is 1614426446.

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 6446244161 - 2¹⁸ = 6445982017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6446244163) 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, 27084941 + ... + 27085178.

It is an arithmetic number, because the mean of its divisors is an integer number (975062160).

Almost surely, 2^6446244161 is an apocalyptic number.

It is an amenable number.

6446244161 is a deficient number, since it is larger than the sum of its proper divisors (1354253119).

6446244161 is a wasteful number, since it uses less digits than its factorization.

6446244161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54170143.

The product of its digits is 110592, while the sum is 38.

The square root of 6446244161 is about 80288.5057838294. The cubic root of 6446244161 is about 1861.0966055312.

The spelling of 6446244161 in words is "six billion, four hundred forty-six million, two hundred forty-four thousand, one hundred sixty-one".