565540146893 has 4 divisors (see below), whose sum is σ = 570544927068. Its totient is φ = 560535366720.

The previous prime is 565540146881. The next prime is 565540146907. The reversal of 565540146893 is 398641045565.

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 53704354564 + 511835792329 = 231742^2 + 715427^2 .

It is a cyclic number.

It is not a de Polignac number, because 565540146893 - 2¹⁰ = 565540145869 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 (565540146823) 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, 2502389918 + ... + 2502390143.

It is an arithmetic number, because the mean of its divisors is an integer number (142636231767).

Almost surely, 2^565540146893 is an apocalyptic number.

It is an amenable number.

565540146893 is a deficient number, since it is larger than the sum of its proper divisors (5004780175).

565540146893 is a wasteful number, since it uses less digits than its factorization.

565540146893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5004780174.

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 565540146893 in words is "five hundred sixty-five billion, five hundred forty million, one hundred forty-six thousand, eight hundred ninety-three".