13246655664231 has 16 divisors (see below), whose sum is σ = 21408736427520. Its totient is φ = 8028276159960.

The previous prime is 13246655664223. The next prime is 13246655664247.

13246655664231 is a `hidden beast` number, since 1 + 3 + 2 + 4 + 6 + 6 + 5 + 566 + 42 + 31 = 666.

13246655664231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13246655664231 - 2³ = 13246655664223 is a prime.

It is a super-2 number, since 2×13246655664231² (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 (13246655664131) 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, 22300766815 + ... + 22300767408.

It is an arithmetic number, because the mean of its divisors is an integer number (1338046026720).

Almost surely, 2^{13246655664231} is an apocalyptic number.

13246655664231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13246655664231 is a deficient number, since it is larger than the sum of its proper divisors (8162080763289).

13246655664231 is a wasteful number, since it uses less digits than its factorization.

13246655664231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44601534243 (or 44601534237 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 54.

It can be divided in two parts, 1324665 and 5664231, that added together give a palindrome (6988896).

The spelling of 13246655664231 in words is "thirteen trillion, two hundred forty-six billion, six hundred fifty-five million, six hundred sixty-four thousand, two hundred thirty-one".