6688816812214 has 8 divisors (see below), whose sum is σ = 10047179636640. Its totient is φ = 3339756933336.

The previous prime is 6688816812203. The next prime is 6688816812221. The reversal of 6688816812214 is 4122186188866.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2325734589 + ... + 2325737464.

It is an arithmetic number, because the mean of its divisors is an integer number (1255897454580).

Almost surely, 2^{6688816812214} is an apocalyptic number.

6688816812214 is a deficient number, since it is larger than the sum of its proper divisors (3358362824426).

6688816812214 is a wasteful number, since it uses less digits than its factorization.

6688816812214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651472774.

The product of its digits is 14155776, while the sum is 61.

The spelling of 6688816812214 in words is "six trillion, six hundred eighty-eight billion, eight hundred sixteen million, eight hundred twelve thousand, two hundred fourteen".