565254071671 has 4 divisors (see below), whose sum is σ = 566596718344. Its totient is φ = 563911425000.

The previous prime is 565254071647. The next prime is 565254071693. The reversal of 565254071671 is 176170452565.

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

It is a cyclic number.

It is not a de Polignac number, because 565254071671 - 2⁹ = 565254071159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565254071771) 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, 671322705 + ... + 671323546.

It is an arithmetic number, because the mean of its divisors is an integer number (141649179586).

Almost surely, 2^565254071671 is an apocalyptic number.

565254071671 is a deficient number, since it is larger than the sum of its proper divisors (1342646673).

565254071671 is a wasteful number, since it uses less digits than its factorization.

565254071671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342646672.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 565254071671 in words is "five hundred sixty-five billion, two hundred fifty-four million, seventy-one thousand, six hundred seventy-one".