136213365623 has 4 divisors (see below), whose sum is σ = 144225916560. Its totient is φ = 128200814688.

The previous prime is 136213365601. The next prime is 136213365637. The reversal of 136213365623 is 326563312631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136213365623 - 2¹⁸ = 136213103479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136213365643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4006275443 + ... + 4006275476.

It is an arithmetic number, because the mean of its divisors is an integer number (36056479140).

Almost surely, 2^136213365623 is an apocalyptic number.

136213365623 is a deficient number, since it is larger than the sum of its proper divisors (8012550937).

136213365623 is an equidigital number, since it uses as much as digits as its factorization.

136213365623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8012550936.

The product of its digits is 349920, while the sum is 41.

The spelling of 136213365623 in words is "one hundred thirty-six billion, two hundred thirteen million, three hundred sixty-five thousand, six hundred twenty-three".