6666434635 has 16 divisors (see below), whose sum is σ = 9144723456. Its totient is φ = 4570177248.

The previous prime is 6666434549. The next prime is 6666434651. The reversal of 6666434635 is 5364346666.

It is not a de Polignac number, because 6666434635 - 2⁷ = 6666434507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142782 + ... + 183628.

It is an arithmetic number, because the mean of its divisors is an integer number (571545216).

Almost surely, 2^6666434635 is an apocalyptic number.

6666434635 is a deficient number, since it is larger than the sum of its proper divisors (2478288821).

6666434635 is a wasteful number, since it uses less digits than its factorization.

6666434635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45522.

The product of its digits is 5598720, while the sum is 49.

The square root of 6666434635 is about 81648.2371824401. The cubic root of 6666434635 is about 1882.0502224929.

The spelling of 6666434635 in words is "six billion, six hundred sixty-six million, four hundred thirty-four thousand, six hundred thirty-five".