3660351201649 has 2 divisors, whose sum is σ = 3660351201650. Its totient is φ = 3660351201648.

The previous prime is 3660351201643. The next prime is 3660351201677. The reversal of 3660351201649 is 9461021530663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3601428494049 + 58922707600 = 1897743^2 + 242740^2 .

It is a cyclic number.

It is not a de Polignac number, because 3660351201649 - 2⁹ = 3660351201137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3660351201599 and 3660351201608.

It is not a weakly prime, because it can be changed into another prime (3660351201643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830175600824 + 1830175600825.

It is an arithmetic number, because the mean of its divisors is an integer number (1830175600825).

Almost surely, 2^{3660351201649} is an apocalyptic number.

It is an amenable number.

3660351201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3660351201649 is an equidigital number, since it uses as much as digits as its factorization.

3660351201649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 3660351201649 in words is "three trillion, six hundred sixty billion, three hundred fifty-one million, two hundred one thousand, six hundred forty-nine".