136503266545 has 4 divisors (see below), whose sum is σ = 163803919860. Its totient is φ = 109202613232.

The previous prime is 136503266509. The next prime is 136503266573. The reversal of 136503266545 is 545662305631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545662305631 = 1097 ⋅497413223.

It can be written as a sum of positive squares in 2 ways, for example, as 89000192241 + 47503074304 = 298329^2 + 217952^2 .

It is a cyclic number.

It is not a de Polignac number, because 136503266545 - 2⁹ = 136503266033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136503266495 and 136503266504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13650326650 + ... + 13650326659.

It is an arithmetic number, because the mean of its divisors is an integer number (40950979965).

Almost surely, 2^136503266545 is an apocalyptic number.

It is an amenable number.

136503266545 is a deficient number, since it is larger than the sum of its proper divisors (27300653315).

136503266545 is an equidigital number, since it uses as much as digits as its factorization.

136503266545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27300653314.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 136503266545 in words is "one hundred thirty-six billion, five hundred three million, two hundred sixty-six thousand, five hundred forty-five".