6516686866156 has 18 divisors (see below), whose sum is σ = 11921594927732. Its totient is φ = 3116676326280.

The previous prime is 6516686866009. The next prime is 6516686866169.

6516686866156 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1539857730 + ... + 1539861961.

Almost surely, 2^{6516686866156} is an apocalyptic number.

It is an amenable number.

6516686866156 is a deficient number, since it is larger than the sum of its proper divisors (5404908061576).

6516686866156 is a wasteful number, since it uses less digits than its factorization.

6516686866156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079719741 (or 3079719716 counting only the distinct ones).

The product of its digits is 447897600, while the sum is 70.

The spelling of 6516686866156 in words is "six trillion, five hundred sixteen billion, six hundred eighty-six million, eight hundred sixty-six thousand, one hundred fifty-six".