3660115609 has 6 divisors (see below), whose sum is σ = 3696006426. Its totient is φ = 3624570000.

The previous prime is 3660115531. The next prime is 3660115637. The reversal of 3660115609 is 9065110663.

It can be written as a sum of positive squares in only one way, i.e., 3519811584 + 140304025 = 59328^2 + 11845^2 .

It is not a de Polignac number, because 3660115609 - 2²¹ = 3658018457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3660115639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161892 + ... + 183109.

It is an arithmetic number, because the mean of its divisors is an integer number (616001071).

Almost surely, 2^3660115609 is an apocalyptic number.

It is an amenable number.

3660115609 is a deficient number, since it is larger than the sum of its proper divisors (35890817).

3660115609 is an equidigital number, since it uses as much as digits as its factorization.

3660115609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345207 (or 345104 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 3660115609 is about 60498.8893203834. The cubic root of 3660115609 is about 1541.1027701787.

The spelling of 3660115609 in words is "three billion, six hundred sixty million, one hundred fifteen thousand, six hundred nine".