136266335305 has 4 divisors (see below), whose sum is σ = 163519602372. Its totient is φ = 109013068240.

The previous prime is 136266335251. The next prime is 136266335383. The reversal of 136266335305 is 503533662631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 503533662631 = 176699 ⋅2849669.

It can be written as a sum of positive squares in 2 ways, for example, as 26713941136 + 109552394169 = 163444^2 + 330987^2 .

It is not a de Polignac number, because 136266335305 - 2¹⁷ = 136266204233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13626633526 + ... + 13626633535.

It is an arithmetic number, because the mean of its divisors is an integer number (40879900593).

Almost surely, 2^136266335305 is an apocalyptic number.

It is an amenable number.

136266335305 is a deficient number, since it is larger than the sum of its proper divisors (27253267067).

136266335305 is an equidigital number, since it uses as much as digits as its factorization.

136266335305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27253267066.

The product of its (nonzero) digits is 874800, while the sum is 43.

Adding to 136266335305 its reverse (503533662631), we get a palindrome (639799997936).

The spelling of 136266335305 in words is "one hundred thirty-six billion, two hundred sixty-six million, three hundred thirty-five thousand, three hundred five".