13365461503 has 4 divisors (see below), whose sum is σ = 13534644640. Its totient is φ = 13196278368.

The previous prime is 13365461497. The next prime is 13365461513. The reversal of 13365461503 is 30516456331.

It is a happy number.

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 13365461503 - 2⁵ = 13365461471 is a prime.

It is a super-2 number, since 2×13365461503² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13365461513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84591450 + ... + 84591607.

It is an arithmetic number, because the mean of its divisors is an integer number (3383661160).

Almost surely, 2^13365461503 is an apocalyptic number.

13365461503 is a deficient number, since it is larger than the sum of its proper divisors (169183137).

13365461503 is an equidigital number, since it uses as much as digits as its factorization.

13365461503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169183136.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 13365461503 in words is "thirteen billion, three hundred sixty-five million, four hundred sixty-one thousand, five hundred three".