476727163341665 has 4 divisors (see below), whose sum is σ = 572072596010004. Its totient is φ = 381381730673328.

The previous prime is 476727163341641. The next prime is 476727163341691. The reversal of 476727163341665 is 566143361727674.

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 353801691686689 + 122925471654976 = 18809617^2 + 11087176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-476727163341665 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 476727163341595 and 476727163341604.

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, 47672716334162 + ... + 47672716334171.

It is an arithmetic number, because the mean of its divisors is an integer number (143018149002501).

Almost surely, 2^{476727163341665} is an apocalyptic number.

It is an amenable number.

476727163341665 is a deficient number, since it is larger than the sum of its proper divisors (95345432668339).

476727163341665 is an equidigital number, since it uses as much as digits as its factorization.

476727163341665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95345432668338.

The product of its digits is 640120320, while the sum is 68.

The spelling of 476727163341665 in words is "four hundred seventy-six trillion, seven hundred twenty-seven billion, one hundred sixty-three million, three hundred forty-one thousand, six hundred sixty-five".