136591516387 has 2 divisors, whose sum is σ = 136591516388. Its totient is φ = 136591516386.

The previous prime is 136591516367. The next prime is 136591516417. The reversal of 136591516387 is 783615195631.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136591516387 is a prime.

It is not a weakly prime, because it can be changed into another prime (136591516367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68295758193 + 68295758194.

It is an arithmetic number, because the mean of its divisors is an integer number (68295758194).

Almost surely, 2^136591516387 is an apocalyptic number.

136591516387 is a deficient number, since it is larger than the sum of its proper divisors (1).

136591516387 is an equidigital number, since it uses as much as digits as its factorization.

136591516387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 55.

The spelling of 136591516387 in words is "one hundred thirty-six billion, five hundred ninety-one million, five hundred sixteen thousand, three hundred eighty-seven".