135645560640503 has 8 divisors (see below), whose sum is σ = 137170254871440. Its totient is φ = 134120879449920.

The previous prime is 135645560640449. The next prime is 135645560640529. The reversal of 135645560640503 is 305046065546531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135645560640503 - 2¹⁸ = 135645560378359 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 (135645560640533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18470288 + ... + 24747578.

It is an arithmetic number, because the mean of its divisors is an integer number (17146281858930).

Almost surely, 2^{135645560640503} is an apocalyptic number.

135645560640503 is a deficient number, since it is larger than the sum of its proper divisors (1524694230937).

135645560640503 is an equidigital number, since it uses as much as digits as its factorization.

135645560640503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520177.

The product of its (nonzero) digits is 19440000, while the sum is 53.

The spelling of 135645560640503 in words is "one hundred thirty-five trillion, six hundred forty-five billion, five hundred sixty million, six hundred forty thousand, five hundred three".