6688012330015 has 4 divisors (see below), whose sum is σ = 8025614796024. Its totient is φ = 5350409864008.

The previous prime is 6688012330003. The next prime is 6688012330057. The reversal of 6688012330015 is 5100332108866.

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 6688012330015 - 2¹¹ = 6688012327967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668801232997 + ... + 668801233006.

It is an arithmetic number, because the mean of its divisors is an integer number (2006403699006).

Almost surely, 2^{6688012330015} is an apocalyptic number.

6688012330015 is a deficient number, since it is larger than the sum of its proper divisors (1337602466009).

6688012330015 is a wasteful number, since it uses less digits than its factorization.

6688012330015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337602466008.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 6688012330015 in words is "six trillion, six hundred eighty-eight billion, twelve million, three hundred thirty thousand, fifteen".