6664836441 has 4 divisors (see below), whose sum is σ = 8886448592. Its totient is φ = 4443224292.

The previous prime is 6664836439. The next prime is 6664836461. The reversal of 6664836441 is 1446384666.

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 not a de Polignac number, because 6664836441 - 2¹ = 6664836439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6664836461) 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, 1110806071 + ... + 1110806076.

It is an arithmetic number, because the mean of its divisors is an integer number (2221612148).

Almost surely, 2^6664836441 is an apocalyptic number.

It is an amenable number.

6664836441 is a deficient number, since it is larger than the sum of its proper divisors (2221612151).

6664836441 is a wasteful number, since it uses less digits than its factorization.

6664836441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221612150.

The product of its digits is 1990656, while the sum is 48.

The square root of 6664836441 is about 81638.4495259434. The cubic root of 6664836441 is about 1881.8998111693.

The spelling of 6664836441 in words is "six billion, six hundred sixty-four million, eight hundred thirty-six thousand, four hundred forty-one".