12360660649 has 2 divisors, whose sum is σ = 12360660650. Its totient is φ = 12360660648.

The previous prime is 12360660647. The next prime is 12360660671. The reversal of 12360660649 is 94606606321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10879950249 + 1480710400 = 104307^2 + 38480^2 .

It is a cyclic number.

It is not a de Polignac number, because 12360660649 - 2¹ = 12360660647 is a prime.

Together with 12360660647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12360660643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6180330324 + 6180330325.

It is an arithmetic number, because the mean of its divisors is an integer number (6180330325).

Almost surely, 2^12360660649 is an apocalyptic number.

It is an amenable number.

12360660649 is a deficient number, since it is larger than the sum of its proper divisors (1).

12360660649 is an equidigital number, since it uses as much as digits as its factorization.

12360660649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 12360660649 in words is "twelve billion, three hundred sixty million, six hundred sixty thousand, six hundred forty-nine".