6666658119 has 24 divisors (see below), whose sum is σ = 10623085200. Its totient is φ = 3994995840.

The previous prime is 6666658073. The next prime is 6666658121. The reversal of 6666658119 is 9118566666.

It is a de Polignac number, because none of the positive numbers 2^k-6666658119 is a prime.

It is a super-2 number, since 2×6666658119² = 88888660951257236322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666658129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 369504 + ... + 387125.

It is an arithmetic number, because the mean of its divisors is an integer number (442628550).

Almost surely, 2^6666658119 is an apocalyptic number.

6666658119 is a deficient number, since it is larger than the sum of its proper divisors (3956427081).

6666658119 is a wasteful number, since it uses less digits than its factorization.

6666658119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756735 (or 756732 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 6666658119 is about 81649.6057492013. The cubic root of 6666658119 is about 1882.0712533955.

The spelling of 6666658119 in words is "six billion, six hundred sixty-six million, six hundred fifty-eight thousand, one hundred nineteen".