136591516447 has 2 divisors, whose sum is σ = 136591516448. Its totient is φ = 136591516446.

The previous prime is 136591516421. The next prime is 136591516471. The reversal of 136591516447 is 744615195631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136591516447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136591516394 and 136591516403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136591516417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68295758223 + 68295758224.

It is an arithmetic number, because the mean of its divisors is an integer number (68295758224).

Almost surely, 2^136591516447 is an apocalyptic number.

136591516447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136591516447 is an equidigital number, since it uses as much as digits as its factorization.

136591516447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2721600, while the sum is 52.

The spelling of 136591516447 in words is "one hundred thirty-six billion, five hundred ninety-one million, five hundred sixteen thousand, four hundred forty-seven".