6628660834 has 16 divisors (see below), whose sum is σ = 10499342400. Its totient is φ = 3129981264.

The previous prime is 6628660817. The next prime is 6628660837. The reversal of 6628660834 is 4380668266.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6628660837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263094 + ... + 287185.

It is an arithmetic number, because the mean of its divisors is an integer number (656208900).

Almost surely, 2^6628660834 is an apocalyptic number.

6628660834 is a deficient number, since it is larger than the sum of its proper divisors (3870681566).

6628660834 is a wasteful number, since it uses less digits than its factorization.

6628660834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550617.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The square root of 6628660834 is about 81416.5881992116. The cubic root of 6628660834 is about 1878.4887540041.

The spelling of 6628660834 in words is "six billion, six hundred twenty-eight million, six hundred sixty thousand, eight hundred thirty-four".