131524566355577 has 2 divisors, whose sum is σ = 131524566355578. Its totient is φ = 131524566355576.

The previous prime is 131524566355573. The next prime is 131524566355583. The reversal of 131524566355577 is 775553665425131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131357707177321 + 166859178256 = 11461139^2 + 408484^2 .

It is a cyclic number.

It is not a de Polignac number, because 131524566355577 - 2² = 131524566355573 is a prime.

It is not a weakly prime, because it can be changed into another prime (131524566355571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65762283177788 + 65762283177789.

It is an arithmetic number, because the mean of its divisors is an integer number (65762283177789).

Almost surely, 2^{131524566355577} is an apocalyptic number.

It is an amenable number.

131524566355577 is a deficient number, since it is larger than the sum of its proper divisors (1).

131524566355577 is an equidigital number, since it uses as much as digits as its factorization.

131524566355577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900000, while the sum is 65.

The spelling of 131524566355577 in words is "one hundred thirty-one trillion, five hundred twenty-four billion, five hundred sixty-six million, three hundred fifty-five thousand, five hundred seventy-seven".