566365765 has 12 divisors (see below), whose sum is σ = 790600716. Its totient is φ = 388364928.

The previous prime is 566365763. The next prime is 566365769. The reversal of 566365765 is 567563665.

It can be written as a sum of positive squares in 2 ways, for example, as 335842276 + 230523489 = 18326^2 + 15183^2 .

It is not a de Polignac number, because 566365765 - 2¹ = 566365763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566365763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1155604 + ... + 1156093.

It is an arithmetic number, because the mean of its divisors is an integer number (65883393).

Almost surely, 2^566365765 is an apocalyptic number.

It is an amenable number.

566365765 is a deficient number, since it is larger than the sum of its proper divisors (224234951).

566365765 is a wasteful number, since it uses less digits than its factorization.

566365765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311716 (or 2311709 counting only the distinct ones).

The product of its digits is 3402000, while the sum is 49.

The square root of 566365765 is about 23798.4403900760. The cubic root of 566365765 is about 827.3685299666.

The spelling of 566365765 in words is "five hundred sixty-six million, three hundred sixty-five thousand, seven hundred sixty-five".