131700661625009 has 2 divisors, whose sum is σ = 131700661625010. Its totient is φ = 131700661625008.

The previous prime is 131700661624993. The next prime is 131700661625023. The reversal of 131700661625009 is 900526166007131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130789072053025 + 911589571984 = 11436305^2 + 954772^2 .

It is a cyclic number.

It is not a de Polignac number, because 131700661625009 - 2⁴ = 131700661624993 is a prime.

It is not a weakly prime, because it can be changed into another prime (131700661625069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65850330812504 + 65850330812505.

It is an arithmetic number, because the mean of its divisors is an integer number (65850330812505).

Almost surely, 2^{131700661625009} is an apocalyptic number.

It is an amenable number.

131700661625009 is a deficient number, since it is larger than the sum of its proper divisors (1).

131700661625009 is an equidigital number, since it uses as much as digits as its factorization.

131700661625009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 131700661625009 in words is "one hundred thirty-one trillion, seven hundred billion, six hundred sixty-one million, six hundred twenty-five thousand, nine".