11456644455 has 48 divisors (see below), whose sum is σ = 20875938720. Its totient is φ = 6026462208.

The previous prime is 11456644447. The next prime is 11456644469. The reversal of 11456644455 is 55444665411.

11456644455 is a `hidden beast` number, since 1 + 1 + 4 + 566 + 44 + 45 + 5 = 666.

It is not a de Polignac number, because 11456644455 - 2³ = 11456644447 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 11456644455.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24111 + ... + 153279.

It is an arithmetic number, because the mean of its divisors is an integer number (434915390).

Almost surely, 2^11456644455 is an apocalyptic number.

11456644455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11456644455 is a deficient number, since it is larger than the sum of its proper divisors (9419294265).

11456644455 is an equidigital number, since it uses as much as digits as its factorization.

11456644455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129262 (or 129250 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The spelling of 11456644455 in words is "eleven billion, four hundred fifty-six million, six hundred forty-four thousand, four hundred fifty-five".