13400055655 has 16 divisors (see below), whose sum is σ = 18548974080. Its totient is φ = 9102732192.

The previous prime is 13400055611. The next prime is 13400055659. The reversal of 13400055655 is 55655000431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13400055655 is a prime.

It is a super-2 number, since 2×13400055655² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13400055655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400055659) 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, 1785315 + ... + 1792804.

It is an arithmetic number, because the mean of its divisors is an integer number (1159310880).

Almost surely, 2^13400055655 is an apocalyptic number.

13400055655 is a deficient number, since it is larger than the sum of its proper divisors (5148918425).

13400055655 is a wasteful number, since it uses less digits than its factorization.

13400055655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578238.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 13400055655 in words is "thirteen billion, four hundred million, fifty-five thousand, six hundred fifty-five".