1066636606 has 48 divisors (see below), whose sum is σ = 1909632240. Its totient is φ = 445374720.

The previous prime is 1066636601. The next prime is 1066636631. The reversal of 1066636606 is 6066366601.

It is a happy number.

It is a super-2 number, since 2×1066636606² = 2275427298518398472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066636601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674725 + ... + 676303.

It is an arithmetic number, because the mean of its divisors is an integer number (39784005).

Almost surely, 2^1066636606 is an apocalyptic number.

1066636606 is a deficient number, since it is larger than the sum of its proper divisors (842995634).

1066636606 is a wasteful number, since it uses less digits than its factorization.

1066636606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 1066636606 is about 32659.4030257750. The cubic root of 1066636606 is about 1021.7363115294.

The spelling of 1066636606 in words is "one billion, sixty-six million, six hundred thirty-six thousand, six hundred six".