3660044665 has 8 divisors (see below), whose sum is σ = 4650409800. Its totient is φ = 2755798272.

The previous prime is 3660044659. The next prime is 3660044669. The reversal of 3660044665 is 5664400663.

It can be written as a sum of positive squares in 4 ways, for example, as 1437016464 + 2223028201 = 37908^2 + 47149^2 .

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 3660044665 - 2¹⁹ = 3659520377 is a prime.

It is a super-3 number, since 3×3660044665³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3660044669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21529590 + ... + 21529759.

It is an arithmetic number, because the mean of its divisors is an integer number (581301225).

Almost surely, 2^3660044665 is an apocalyptic number.

It is an amenable number.

3660044665 is a deficient number, since it is larger than the sum of its proper divisors (990365135).

3660044665 is a wasteful number, since it uses less digits than its factorization.

3660044665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43059371.

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 3660044665 is about 60498.3029927286. The cubic root of 3660044665 is about 1541.0928130523.

The spelling of 3660044665 in words is "three billion, six hundred sixty million, forty-four thousand, six hundred sixty-five".