135656664538859 has 2 divisors, whose sum is σ = 135656664538860. Its totient is φ = 135656664538858.

The previous prime is 135656664538841. The next prime is 135656664538877. The reversal of 135656664538859 is 958835466656531.

It is a balanced prime because it is at equal distance from previous prime (135656664538841) and next prime (135656664538877).

It is a cyclic number.

It is not a de Polignac number, because 135656664538859 - 2¹² = 135656664534763 is a prime.

It is not a weakly prime, because it can be changed into another prime (135656664538459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67828332269429 + 67828332269430.

It is an arithmetic number, because the mean of its divisors is an integer number (67828332269430).

Almost surely, 2^{135656664538859} is an apocalyptic number.

135656664538859 is a deficient number, since it is larger than the sum of its proper divisors (1).

135656664538859 is an equidigital number, since it uses as much as digits as its factorization.

135656664538859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160000, while the sum is 80.

The spelling of 135656664538859 in words is "one hundred thirty-five trillion, six hundred fifty-six billion, six hundred sixty-four million, five hundred thirty-eight thousand, eight hundred fifty-nine".