13645035606503 has 16 divisors (see below), whose sum is σ = 15598957031424. Its totient is φ = 11692272386880.

The previous prime is 13645035606473. The next prime is 13645035606523. The reversal of 13645035606503 is 30560653054631.

It is a cyclic number.

It is not a de Polignac number, because 13645035606503 - 2⁸ = 13645035606247 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 (13645035606523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504778598 + ... + 504805628.

It is an arithmetic number, because the mean of its divisors is an integer number (974934814464).

Almost surely, 2^{13645035606503} is an apocalyptic number.

13645035606503 is a deficient number, since it is larger than the sum of its proper divisors (1953921424921).

13645035606503 is a wasteful number, since it uses less digits than its factorization.

13645035606503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45782.

The product of its (nonzero) digits is 2916000, while the sum is 47.

The spelling of 13645035606503 in words is "thirteen trillion, six hundred forty-five billion, thirty-five million, six hundred six thousand, five hundred three".