3660545321 has 4 divisors (see below), whose sum is σ = 3738429312. Its totient is φ = 3582661332.

The previous prime is 3660545299. The next prime is 3660545327. The reversal of 3660545321 is 1235450663.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3660545321 is a prime.

It is a super-3 number, since 3×3660545321³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660545327) 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 3 ways as a sum of consecutive naturals, for example, 38941925 + ... + 38942018.

It is an arithmetic number, because the mean of its divisors is an integer number (934607328).

Almost surely, 2^3660545321 is an apocalyptic number.

It is an amenable number.

3660545321 is a deficient number, since it is larger than the sum of its proper divisors (77883991).

3660545321 is an equidigital number, since it uses as much as digits as its factorization.

3660545321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77883990.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 3660545321 is about 60502.4406201932. The cubic root of 3660545321 is about 1541.1630783319.

Adding to 3660545321 its reverse (1235450663), we get a palindrome (4895995984).

The spelling of 3660545321 in words is "three billion, six hundred sixty million, five hundred forty-five thousand, three hundred twenty-one".