1126642666 has 8 divisors (see below), whose sum is σ = 1789373700. Its totient is φ = 530184768.

The previous prime is 1126642661. The next prime is 1126642667. The reversal of 1126642666 is 6662466211.

It can be written as a sum of positive squares in 2 ways, for example, as 1113890625 + 12752041 = 33375^2 + 3571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1126642661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16568241 + ... + 16568308.

Almost surely, 2^1126642666 is an apocalyptic number.

1126642666 is a deficient number, since it is larger than the sum of its proper divisors (662731034).

1126642666 is a wasteful number, since it uses less digits than its factorization.

1126642666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33136568.

The product of its digits is 124416, while the sum is 40.

The square root of 1126642666 is about 33565.4981491412. The cubic root of 1126642666 is about 1040.5478702326.

The spelling of 1126642666 in words is "one billion, one hundred twenty-six million, six hundred forty-two thousand, six hundred sixty-six".