6660503864327 has 4 divisors (see below), whose sum is σ = 6660518854680. Its totient is φ = 6660488873976.

The previous prime is 6660503864321. The next prime is 6660503864423. The reversal of 6660503864327 is 7234683050666.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6660503864327 - 2³⁸ = 6385625957383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6660503864321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6807677 + ... + 7724342.

It is an arithmetic number, because the mean of its divisors is an integer number (1665129713670).

Almost surely, 2^{6660503864327} is an apocalyptic number.

6660503864327 is a deficient number, since it is larger than the sum of its proper divisors (14990353).

6660503864327 is a wasteful number, since it uses less digits than its factorization.

6660503864327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14990352.

The product of its (nonzero) digits is 26127360, while the sum is 56.

The spelling of 6660503864327 in words is "six trillion, six hundred sixty billion, five hundred three million, eight hundred sixty-four thousand, three hundred twenty-seven".