1123667066 has 4 divisors (see below), whose sum is σ = 1685500602. Its totient is φ = 561833532.

The previous prime is 1123667063. The next prime is 1123667081. The reversal of 1123667066 is 6607663211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6607663211 = 1301 ⋅5078911.

It can be written as a sum of positive squares in only one way, i.e., 824895841 + 298771225 = 28721^2 + 17285^2 .

It is not an unprimeable number, because it can be changed into a prime (1123667063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280916765 + ... + 280916768.

Almost surely, 2^1123667066 is an apocalyptic number.

1123667066 is a deficient number, since it is larger than the sum of its proper divisors (561833536).

1123667066 is an equidigital number, since it uses as much as digits as its factorization.

1123667066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561833535.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1123667066 is about 33521.1435664119. The cubic root of 1123667066 is about 1039.6309914967.

The spelling of 1123667066 in words is "one billion, one hundred twenty-three million, six hundred sixty-seven thousand, sixty-six".