6515666066506 has 16 divisors (see below), whose sum is σ = 10288164499200. Its totient is φ = 3086286923808.

The previous prime is 6515666066501. The next prime is 6515666066519. The reversal of 6515666066506 is 6056606665156.

It is not an unprimeable number, because it can be changed into a prime (6515666066501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780250 + ... + 3693253.

It is an arithmetic number, because the mean of its divisors is an integer number (643010281200).

Almost surely, 2^{6515666066506} is an apocalyptic number.

6515666066506 is a deficient number, since it is larger than the sum of its proper divisors (3772498432694).

6515666066506 is a wasteful number, since it uses less digits than its factorization.

6515666066506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511853.

The product of its (nonzero) digits is 34992000, while the sum is 58.

The spelling of 6515666066506 in words is "six trillion, five hundred fifteen billion, six hundred sixty-six million, sixty-six thousand, five hundred six".