1113706666 has 4 divisors (see below), whose sum is σ = 1670560002. Its totient is φ = 556853332.

The previous prime is 1113706613. The next prime is 1113706709. The reversal of 1113706666 is 6666073111.

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., 730134441 + 383572225 = 27021^2 + 19585^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278426665 + ... + 278426668.

Almost surely, 2^1113706666 is an apocalyptic number.

1113706666 is a deficient number, since it is larger than the sum of its proper divisors (556853336).

1113706666 is an equidigital number, since it uses as much as digits as its factorization.

1113706666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556853335.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 1113706666 is about 33372.2439461298. The cubic root of 1113706666 is about 1036.5500407233.

Adding to 1113706666 its reverse (6666073111), we get a palindrome (7779779777).

The spelling of 1113706666 in words is "one billion, one hundred thirteen million, seven hundred six thousand, six hundred sixty-six".