6659946726 has 32 divisors (see below), whose sum is σ = 13793915520. Its totient is φ = 2142223104.

The previous prime is 6659946719. The next prime is 6659946737. The reversal of 6659946726 is 6276499566.

It is a self number, because there is not a number n which added to its sum of digits gives 6659946726.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134091 + ... + 176918.

It is an arithmetic number, because the mean of its divisors is an integer number (431059860).

Almost surely, 2^6659946726 is an apocalyptic number.

6659946726 is an abundant number, since it is smaller than the sum of its proper divisors (7133968794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6659946726 is a wasteful number, since it uses less digits than its factorization.

6659946726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311140.

The product of its digits is 29393280, while the sum is 60.

The square root of 6659946726 is about 81608.4966532285. The cubic root of 6659946726 is about 1881.4394745404.

The spelling of 6659946726 in words is "six billion, six hundred fifty-nine million, nine hundred forty-six thousand, seven hundred twenty-six".