3646664441 has 24 divisors (see below), whose sum is σ = 4476533760. Its totient is φ = 2899935360.

The previous prime is 3646664419. The next prime is 3646664459. The reversal of 3646664441 is 1444666463.

3646664441 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3646664441 - 2¹⁰ = 3646663417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3646664392 and 3646664401.

It is not an unprimeable number, because it can be changed into a prime (3646664401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 596840 + ... + 602918.

It is an arithmetic number, because the mean of its divisors is an integer number (186522240).

Almost surely, 2^3646664441 is an apocalyptic number.

It is an amenable number.

3646664441 is a deficient number, since it is larger than the sum of its proper divisors (829869319).

3646664441 is an equidigital number, since it uses as much as digits as its factorization.

3646664441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245 (or 6174 counting only the distinct ones).

The product of its digits is 995328, while the sum is 44.

The square root of 3646664441 is about 60387.6182756035. The cubic root of 3646664441 is about 1539.2125677263.

The spelling of 3646664441 in words is "three billion, six hundred forty-six million, six hundred sixty-four thousand, four hundred forty-one".