6611444999 has 2 divisors, whose sum is σ = 6611445000. Its totient is φ = 6611444998.

The previous prime is 6611444981. The next prime is 6611445017. The reversal of 6611444999 is 9994441166.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (6611444981) and next prime (6611445017).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611444999 is a prime.

It is a super-2 number, since 2×6611444999² = 87422409949604220002, which contains 22 as substring.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6611444999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6611444909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3305722499 + 3305722500.

It is an arithmetic number, because the mean of its divisors is an integer number (3305722500).

Almost surely, 2^6611444999 is an apocalyptic number.

6611444999 is a deficient number, since it is larger than the sum of its proper divisors (1).

6611444999 is an equidigital number, since it uses as much as digits as its factorization.

6611444999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 53.

The square root of 6611444999 is about 81310.7926354183. The cubic root of 6611444999 is about 1876.8610853534.

The spelling of 6611444999 in words is "six billion, six hundred eleven million, four hundred forty-four thousand, nine hundred ninety-nine".