1136065666 has 4 divisors (see below), whose sum is σ = 1704098502. Its totient is φ = 568032832.

The previous prime is 1136065663. The next prime is 1136065669. The reversal of 1136065666 is 6665606311.

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

It is an interprime number because it is at equal distance from previous prime (1136065663) and next prime (1136065669).

It can be written as a sum of positive squares in only one way, i.e., 904265041 + 231800625 = 30071^2 + 15225^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1136065661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284016415 + ... + 284016418.

Almost surely, 2^1136065666 is an apocalyptic number.

1136065666 is a deficient number, since it is larger than the sum of its proper divisors (568032836).

1136065666 is an equidigital number, since it uses as much as digits as its factorization.

1136065666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568032835.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 1136065666 is about 33705.5732186830. The cubic root of 1136065666 is about 1043.4407936985.

The spelling of 1136065666 in words is "one billion, one hundred thirty-six million, sixty-five thousand, six hundred sixty-six".