1106600666 has 4 divisors (see below), whose sum is σ = 1659901002. Its totient is φ = 553300332.

The previous prime is 1106600653. The next prime is 1106600687. The reversal of 1106600666 is 6660066011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 750486025 + 356114641 = 27395^2 + 18871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276650165 + ... + 276650168.

Almost surely, 2^1106600666 is an apocalyptic number.

1106600666 is a deficient number, since it is larger than the sum of its proper divisors (553300336).

1106600666 is an equidigital number, since it uses as much as digits as its factorization.

1106600666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553300335.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1106600666 is about 33265.6078555616. The cubic root of 1106600666 is about 1034.3407677794.

Adding to 1106600666 its reverse (6660066011), we get a palindrome (7766666677).

The spelling of 1106600666 in words is "one billion, one hundred six million, six hundred thousand, six hundred sixty-six".