13440666055 has 32 divisors (see below), whose sum is σ = 17882467200. Its totient is φ = 9679622656.

The previous prime is 13440666053. The next prime is 13440666061. The reversal of 13440666055 is 55066604431.

It is not a de Polignac number, because 13440666055 - 2¹ = 13440666053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13440665999 and 13440666017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440666053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553101 + ... + 576889.

It is an arithmetic number, because the mean of its divisors is an integer number (558827100).

Almost surely, 2^13440666055 is an apocalyptic number.

13440666055 is a deficient number, since it is larger than the sum of its proper divisors (4441801145).

13440666055 is an equidigital number, since it uses as much as digits as its factorization.

13440666055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868 (or 23834 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 13440666055 in words is "thirteen billion, four hundred forty million, six hundred sixty-six thousand, fifty-five".