3660648161 has 2 divisors, whose sum is σ = 3660648162. Its totient is φ = 3660648160.

The previous prime is 3660648143. The next prime is 3660648197. The reversal of 3660648161 is 1618460663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3660250000 + 398161 = 60500^2 + 631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3660648161 is a prime.

It is not a weakly prime, because it can be changed into another prime (3660618161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830324080 + 1830324081.

It is an arithmetic number, because the mean of its divisors is an integer number (1830324081).

Almost surely, 2^3660648161 is an apocalyptic number.

It is an amenable number.

3660648161 is a deficient number, since it is larger than the sum of its proper divisors (1).

3660648161 is an equidigital number, since it uses as much as digits as its factorization.

3660648161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 3660648161 is about 60503.2904972944. The cubic root of 3660648161 is about 1541.1775107651.

The spelling of 3660648161 in words is "three billion, six hundred sixty million, six hundred forty-eight thousand, one hundred sixty-one".