6534909063866 has 16 divisors (see below), whose sum is σ = 9995230634400. Its totient is φ = 3203462466768.

The previous prime is 6534909063803. The next prime is 6534909063889. The reversal of 6534909063866 is 6683609094356.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74192696 + ... + 74280723.

It is an arithmetic number, because the mean of its divisors is an integer number (624701914650).

Almost surely, 2^{6534909063866} is an apocalyptic number.

6534909063866 is a deficient number, since it is larger than the sum of its proper divisors (3460321570534).

6534909063866 is a wasteful number, since it uses less digits than its factorization.

6534909063866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148473853.

The product of its (nonzero) digits is 151165440, while the sum is 65.

The spelling of 6534909063866 in words is "six trillion, five hundred thirty-four billion, nine hundred nine million, sixty-three thousand, eight hundred sixty-six".