104435666455 has 4 divisors (see below), whose sum is σ = 125322799752. Its totient is φ = 83548533160.

The previous prime is 104435666453. The next prime is 104435666459. The reversal of 104435666455 is 554666534401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554666534401 = 7 ⋅79238076343.

It is not a de Polignac number, because 104435666455 - 2¹ = 104435666453 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104435666399 and 104435666408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104435666453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10443566641 + ... + 10443566650.

It is an arithmetic number, because the mean of its divisors is an integer number (31330699938).

Almost surely, 2^104435666455 is an apocalyptic number.

104435666455 is a deficient number, since it is larger than the sum of its proper divisors (20887133297).

104435666455 is an equidigital number, since it uses as much as digits as its factorization.

104435666455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20887133296.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 104435666455 in words is "one hundred four billion, four hundred thirty-five million, six hundred sixty-six thousand, four hundred fifty-five".