1065566 has 4 divisors (see below), whose sum is σ = 1598352. Its totient is φ = 532782.

The previous prime is 1065557. The next prime is 1065569. The reversal of 1065566 is 6655601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6655601 = 823 ⋅8087.

It is a super-2 number, since 2×1065566² = 2270861800712, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266390 + ... + 266393.

It is an arithmetic number, because the mean of its divisors is an integer number (399588).

2^1065566 is an apocalyptic number.

1065566 is a deficient number, since it is larger than the sum of its proper divisors (532786).

1065566 is an equidigital number, since it uses as much as digits as its factorization.

1065566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532785.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1065566 is about 1032.2625634983. The cubic root of 1065566 is about 102.1394350888.

The spelling of 1065566 in words is "one million, sixty-five thousand, five hundred sixty-six".