566661743 has 4 divisors (see below), whose sum is σ = 577353528. Its totient is φ = 555969960.

The previous prime is 566661727. The next prime is 566661763. The reversal of 566661743 is 347166665.

566661743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 566661743 - 2⁴ = 566661727 is a prime.

It is a super-2 number, since 2×566661743² = 642211061959596098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 566661694 and 566661703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566661713) 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, 5345813 + ... + 5345918.

It is an arithmetic number, because the mean of its divisors is an integer number (144338382).

Almost surely, 2^566661743 is an apocalyptic number.

566661743 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

566661743 is a deficient number, since it is larger than the sum of its proper divisors (10691785).

566661743 is a wasteful number, since it uses less digits than its factorization.

566661743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10691784.

The product of its digits is 544320, while the sum is 44.

The square root of 566661743 is about 23804.6580105659. The cubic root of 566661743 is about 827.5126301532.

The spelling of 566661743 in words is "five hundred sixty-six million, six hundred sixty-one thousand, seven hundred forty-three".