1065506566 has 8 divisors (see below), whose sum is σ = 1599101064. Its totient is φ = 532472880.

The previous prime is 1065506537. The next prime is 1065506587. The reversal of 1065506566 is 6656055601.

1065506566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1065506566² = 2270608484378224712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135420 + ... + 143071.

It is an arithmetic number, because the mean of its divisors is an integer number (199887633).

Almost surely, 2^1065506566 is an apocalyptic number.

1065506566 is a deficient number, since it is larger than the sum of its proper divisors (533594498).

1065506566 is a wasteful number, since it uses less digits than its factorization.

1065506566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280406.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 1065506566 is about 32642.0980636968. The cubic root of 1065506566 is about 1021.3753604550.

It can be divided in two parts, 106550656 and 6, that multiplied together give a palindrome (639303936).

The spelling of 1065506566 in words is "one billion, sixty-five million, five hundred six thousand, five hundred sixty-six".