3660435225 has 96 divisors (see below), whose sum is σ = 6910272000. Its totient is φ = 1898994240.

The previous prime is 3660435221. The next prime is 3660435287. The reversal of 3660435225 is 5225340663.

3660435225 is a `hidden beast` number, since 36 + 60 + 43 + 522 + 5 = 666.

It is not a de Polignac number, because 3660435225 - 2² = 3660435221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3660435225.

It is not an unprimeable number, because it can be changed into a prime (3660435221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4260846 + ... + 4261704.

It is an arithmetic number, because the mean of its divisors is an integer number (71982000).

Almost surely, 2^3660435225 is an apocalyptic number.

It is an amenable number.

3660435225 is a deficient number, since it is larger than the sum of its proper divisors (3249836775).

3660435225 is a wasteful number, since it uses less digits than its factorization.

3660435225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 3660435225 is about 60501.5307657583. The cubic root of 3660435225 is about 1541.1476273015.

Adding to 3660435225 its reverse (5225340663), we get a palindrome (8885775888).

The spelling of 3660435225 in words is "three billion, six hundred sixty million, four hundred thirty-five thousand, two hundred twenty-five".