1144664011 has 4 divisors (see below), whose sum is σ = 1145041024. Its totient is φ = 1144287000.

The previous prime is 1144663981. The next prime is 1144664021. The reversal of 1144664011 is 1104664411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144664011 - 2¹³ = 1144655819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144664021) 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, 183915 + ... + 190036.

It is an arithmetic number, because the mean of its divisors is an integer number (286260256).

Almost surely, 2^1144664011 is an apocalyptic number.

1144664011 is a deficient number, since it is larger than the sum of its proper divisors (377013).

1144664011 is an equidigital number, since it uses as much as digits as its factorization.

1144664011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377012.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1144664011 is about 33832.8835750073. The cubic root of 1144664011 is about 1046.0666172733.

It can be divided in two parts, 11446 and 64011, that added together give a palindrome (75457).

The spelling of 1144664011 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, eleven".