12507366520177 has 2 divisors, whose sum is σ = 12507366520178. Its totient is φ = 12507366520176.

The previous prime is 12507366520157. The next prime is 12507366520219. The reversal of 12507366520177 is 77102566370521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11626845153856 + 880521366321 = 3409816^2 + 938361^2 .

It is a cyclic number.

It is not a de Polignac number, because 12507366520177 - 2⁷ = 12507366520049 is a prime.

It is a super-2 number, since 2×12507366520177² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12507366520157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253683260088 + 6253683260089.

It is an arithmetic number, because the mean of its divisors is an integer number (6253683260089).

Almost surely, 2^{12507366520177} is an apocalyptic number.

It is an amenable number.

12507366520177 is a deficient number, since it is larger than the sum of its proper divisors (1).

12507366520177 is an equidigital number, since it uses as much as digits as its factorization.

12507366520177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 12507366520177 in words is "twelve trillion, five hundred seven billion, three hundred sixty-six million, five hundred twenty thousand, one hundred seventy-seven".