23655354554665 has 4 divisors (see below), whose sum is σ = 28386425465604. Its totient is φ = 18924283643728.

The previous prime is 23655354554593. The next prime is 23655354554743. The reversal of 23655354554665 is 56645545355632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9473080598569 + 14182273956096 = 3077837^2 + 3765936^2 .

It is a cyclic number.

It is not a de Polignac number, because 23655354554665 - 2²⁹ = 23654817683753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23655354554597 and 23655354554606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365535455462 + ... + 2365535455471.

It is an arithmetic number, because the mean of its divisors is an integer number (7096606366401).

Almost surely, 2^{23655354554665} is an apocalyptic number.

It is an amenable number.

23655354554665 is a deficient number, since it is larger than the sum of its proper divisors (4731070910939).

23655354554665 is an equidigital number, since it uses as much as digits as its factorization.

23655354554665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731070910938.

The product of its digits is 972000000, while the sum is 64.

The spelling of 23655354554665 in words is "twenty-three trillion, six hundred fifty-five billion, three hundred fifty-four million, five hundred fifty-four thousand, six hundred sixty-five".