11344663457855 has 32 divisors (see below), whose sum is σ = 16755672818304. Its totient is φ = 7180593302016.

The previous prime is 11344663457837. The next prime is 11344663457857. The reversal of 11344663457855 is 55875436644311.

It is a Cunningham number, because it is equal to 3368184²-1.

It is a cyclic number.

It is not a de Polignac number, because 11344663457855 - 2¹⁴ = 11344663441471 is a prime.

It is a super-3 number, since 3×11344663457855³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11344663457857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16504097 + ... + 17177733.

It is an arithmetic number, because the mean of its divisors is an integer number (523614775572).

Almost surely, 2^{11344663457855} is an apocalyptic number.

11344663457855 is a deficient number, since it is larger than the sum of its proper divisors (5411009360449).

11344663457855 is a wasteful number, since it uses less digits than its factorization.

11344663457855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710675.

The product of its digits is 145152000, while the sum is 62.

The spelling of 11344663457855 in words is "eleven trillion, three hundred forty-four billion, six hundred sixty-three million, four hundred fifty-seven thousand, eight hundred fifty-five".