12609760161577 has 2 divisors, whose sum is σ = 12609760161578. Its totient is φ = 12609760161576.

The previous prime is 12609760161547. The next prime is 12609760161623. The reversal of 12609760161577 is 77516106790621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7783759623721 + 4826000537856 = 2789939^2 + 2196816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12609760161577 is a prime.

It is not a weakly prime, because it can be changed into another prime (12609760161547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6304880080788 + 6304880080789.

It is an arithmetic number, because the mean of its divisors is an integer number (6304880080789).

Almost surely, 2^{12609760161577} is an apocalyptic number.

It is an amenable number.

12609760161577 is a deficient number, since it is larger than the sum of its proper divisors (1).

12609760161577 is an equidigital number, since it uses as much as digits as its factorization.

12609760161577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6667920, while the sum is 58.

The spelling of 12609760161577 in words is "twelve trillion, six hundred nine billion, seven hundred sixty million, one hundred sixty-one thousand, five hundred seventy-seven".