6664213743 has 16 divisors (see below), whose sum is σ = 9708794112. Its totient is φ = 4032504000.

The previous prime is 6664213733. The next prime is 6664213763. The reversal of 6664213743 is 3473124666.

It is not a de Polignac number, because 6664213743 - 2⁵ = 6664213711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6664213695 and 6664213704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664213733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139198 + ... + 180843.

It is an arithmetic number, because the mean of its divisors is an integer number (606799632).

Almost surely, 2^6664213743 is an apocalyptic number.

6664213743 is a deficient number, since it is larger than the sum of its proper divisors (3044580369).

6664213743 is a wasteful number, since it uses less digits than its factorization.

6664213743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320686.

The product of its digits is 435456, while the sum is 42.

The square root of 6664213743 is about 81634.6356824112. The cubic root of 6664213743 is about 1881.8412004913.

The spelling of 6664213743 in words is "six billion, six hundred sixty-four million, two hundred thirteen thousand, seven hundred forty-three".