6682512566 has 4 divisors (see below), whose sum is σ = 10023768852. Its totient is φ = 3341256282.

The previous prime is 6682512547. The next prime is 6682512583. The reversal of 6682512566 is 6652152866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6652152866 = 2 ⋅3326076433.

It is a self number, because there is not a number n which added to its sum of digits gives 6682512566.

It is a congruent 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 as a sum of consecutive naturals, namely, 1670628140 + ... + 1670628143.

It is an arithmetic number, because the mean of its divisors is an integer number (2505942213).

Almost surely, 2^6682512566 is an apocalyptic number.

6682512566 is a deficient number, since it is larger than the sum of its proper divisors (3341256286).

6682512566 is a wasteful number, since it uses less digits than its factorization.

6682512566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341256285.

The product of its digits is 1036800, while the sum is 47.

The square root of 6682512566 is about 81746.6364200999. The cubic root of 6682512566 is about 1883.5620341024.

The spelling of 6682512566 in words is "six billion, six hundred eighty-two million, five hundred twelve thousand, five hundred sixty-six".