136645355313545 has 24 divisors (see below), whose sum is σ = 178584454296216. Its totient is φ = 100324059783168.

The previous prime is 136645355313529. The next prime is 136645355313613. The reversal of 136645355313545 is 545313553546631.

It can be written as a sum of positive squares in 12 ways, for example, as 35550595354624 + 101094759958921 = 5962432^2 + 10054589^2 .

It is not a de Polignac number, because 136645355313545 - 2⁴ = 136645355313529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467225144 + ... + 467517513.

It is an arithmetic number, because the mean of its divisors is an integer number (7441018929009).

Almost surely, 2^{136645355313545} is an apocalyptic number.

It is an amenable number.

136645355313545 is a deficient number, since it is larger than the sum of its proper divisors (41939098982671).

136645355313545 is a wasteful number, since it uses less digits than its factorization.

136645355313545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934742861 (or 934742848 counting only the distinct ones).

The product of its digits is 145800000, while the sum is 59.

The spelling of 136645355313545 in words is "one hundred thirty-six trillion, six hundred forty-five billion, three hundred fifty-five million, three hundred thirteen thousand, five hundred forty-five".