13456642455 has 32 divisors (see below), whose sum is σ = 23927742720. Its totient is φ = 7175429280.

The previous prime is 13456642447. The next prime is 13456642469. The reversal of 13456642455 is 55424665431.

13456642455 is a `hidden beast` number, since 1 + 3 + 4 + 566 + 42 + 45 + 5 = 666.

It is not a de Polignac number, because 13456642455 - 2³ = 13456642447 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 13456642455.

It is a congruent number.

It is an unprimeable number.

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, 1199020 + ... + 1210190.

It is an arithmetic number, because the mean of its divisors is an integer number (747741960).

Almost surely, 2^13456642455 is an apocalyptic number.

13456642455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13456642455 is a deficient number, since it is larger than the sum of its proper divisors (10471100265).

13456642455 is a wasteful number, since it uses less digits than its factorization.

13456642455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20108 (or 20102 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 13456642455 in words is "thirteen billion, four hundred fifty-six million, six hundred forty-two thousand, four hundred fifty-five".