6666119999 has 32 divisors (see below), whose sum is σ = 9030696960. Its totient is φ = 4762216800.

The previous prime is 6666119987. The next prime is 6666120011. The reversal of 6666119999 is 9999116666.

It is an interprime number because it is at equal distance from previous prime (6666119987) and next prime (6666120011).

It is a de Polignac number, because none of the positive numbers 2^k-6666119999 is a prime.

6666119999 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666119939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28139 + ... + 118844.

It is an arithmetic number, because the mean of its divisors is an integer number (282209280).

Almost surely, 2^6666119999 is an apocalyptic number.

6666119999 is a deficient number, since it is larger than the sum of its proper divisors (2364576961).

6666119999 is a wasteful number, since it uses less digits than its factorization.

6666119999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147051.

The product of its digits is 8503056, while the sum is 62.

The square root of 6666119999 is about 81646.3103820375. The cubic root of 6666119999 is about 1882.0206129589.

The spelling of 6666119999 in words is "six billion, six hundred sixty-six million, one hundred nineteen thousand, nine hundred ninety-nine".