13465500556431 has 32 divisors (see below), whose sum is σ = 22384446455808. Its totient is φ = 6994990931040.

The previous prime is 13465500556379. The next prime is 13465500556471.

13465500556431 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13465500556431 - 2⁹ = 13465500555919 is a prime.

It is a super-2 number, since 2×13465500556431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13465500556471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26503470 + ... + 27006756.

It is an arithmetic number, because the mean of its divisors is an integer number (699513951744).

Almost surely, 2^{13465500556431} is an apocalyptic number.

13465500556431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13465500556431 is a deficient number, since it is larger than the sum of its proper divisors (8918945899377).

13465500556431 is a wasteful number, since it uses less digits than its factorization.

13465500556431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619131.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 13465500556431 in words is "thirteen trillion, four hundred sixty-five billion, five hundred million, five hundred fifty-six thousand, four hundred thirty-one".