131700661657619 has 2 divisors, whose sum is σ = 131700661657620. Its totient is φ = 131700661657618.

The previous prime is 131700661657613. The next prime is 131700661657699. The reversal of 131700661657619 is 916756166007131.

It is a weak prime.

It is an emirp because it is prime and its reverse (916756166007131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131700661657619 - 2²⁸ = 131700393222163 is a prime.

It is a super-2 number, since 2×131700661657619² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131700661657613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65850330828809 + 65850330828810.

It is an arithmetic number, because the mean of its divisors is an integer number (65850330828810).

Almost surely, 2^{131700661657619} is an apocalyptic number.

131700661657619 is a deficient number, since it is larger than the sum of its proper divisors (1).

131700661657619 is an equidigital number, since it uses as much as digits as its factorization.

131700661657619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8573040, while the sum is 59.

The spelling of 131700661657619 in words is "one hundred thirty-one trillion, seven hundred billion, six hundred sixty-one million, six hundred fifty-seven thousand, six hundred nineteen".