1144166666 has 4 divisors (see below), whose sum is σ = 1716250002. Its totient is φ = 572083332.

The previous prime is 1144166663. The next prime is 1144166677. The reversal of 1144166666 is 6666614411.

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., 848498641 + 295668025 = 29129^2 + 17195^2 .

It is not an unprimeable number, because it can be changed into a prime (1144166663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286041665 + ... + 286041668.

Almost surely, 2^1144166666 is an apocalyptic number.

1144166666 is a deficient number, since it is larger than the sum of its proper divisors (572083336).

1144166666 is an equidigital number, since it uses as much as digits as its factorization.

1144166666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572083335.

The product of its digits is 124416, while the sum is 41.

The square root of 1144166666 is about 33825.5327526412. The cubic root of 1144166666 is about 1045.9150935179.

The spelling of 1144166666 in words is "one billion, one hundred forty-four million, one hundred sixty-six thousand, six hundred sixty-six".