11455636455 has 24 divisors (see below), whose sum is σ = 19877478192. Its totient is φ = 6103198464.

The previous prime is 11455636417. The next prime is 11455636457. The reversal of 11455636455 is 55463655411.

11455636455 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 5 + 636 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 11455636455 - 2⁷ = 11455636327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11455636455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11455636457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91794 + ... + 177023.

It is an arithmetic number, because the mean of its divisors is an integer number (828228258).

Almost surely, 2^11455636455 is an apocalyptic number.

11455636455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11455636455 is a deficient number, since it is larger than the sum of its proper divisors (8421841737).

11455636455 is a wasteful number, since it uses less digits than its factorization.

11455636455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269775 (or 269772 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 11455636455 in words is "eleven billion, four hundred fifty-five million, six hundred thirty-six thousand, four hundred fifty-five".