6697918806 has 8 divisors (see below), whose sum is σ = 13395837624. Its totient is φ = 2232639600.

The previous prime is 6697918789. The next prime is 6697918813. The reversal of 6697918806 is 6088197966.

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

6697918806 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6697918806.

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, 558159895 + ... + 558159906.

It is an arithmetic number, because the mean of its divisors is an integer number (1674479703).

Almost surely, 2^6697918806 is an apocalyptic number.

6697918806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6697918806 is a wasteful number, since it uses less digits than its factorization.

6697918806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116319806.

The product of its (nonzero) digits is 7838208, while the sum is 60.

The square root of 6697918806 is about 81840.8138156018. The cubic root of 6697918806 is about 1885.0084130707.

The spelling of 6697918806 in words is "six billion, six hundred ninety-seven million, nine hundred eighteen thousand, eight hundred six".