136601603291 has 2 divisors, whose sum is σ = 136601603292. Its totient is φ = 136601603290.

The previous prime is 136601603279. The next prime is 136601603321. The reversal of 136601603291 is 192306106631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136601603291 - 2⁶ = 136601603227 is a prime.

It is not a weakly prime, because it can be changed into another prime (136601603231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68300801645 + 68300801646.

It is an arithmetic number, because the mean of its divisors is an integer number (68300801646).

Almost surely, 2^136601603291 is an apocalyptic number.

136601603291 is a deficient number, since it is larger than the sum of its proper divisors (1).

136601603291 is an equidigital number, since it uses as much as digits as its factorization.

136601603291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 136601603291 in words is "one hundred thirty-six billion, six hundred one million, six hundred three thousand, two hundred ninety-one".