6693663966 has 16 divisors (see below), whose sum is σ = 14604357888. Its totient is φ = 2028383000.

The previous prime is 6693663961. The next prime is 6693664039.

6693663966 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6693663961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50709510 + ... + 50709641.

It is an arithmetic number, because the mean of its divisors is an integer number (912772368).

Almost surely, 2^6693663966 is an apocalyptic number.

6693663966 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

6693663966 is an abundant number, since it is smaller than the sum of its proper divisors (7910693922).

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

6693663966 is a wasteful number, since it uses less digits than its factorization.

6693663966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101419167.

The product of its digits is 34012224, while the sum is 60.

The square root of 6693663966 is about 81814.8150764884. The cubic root of 6693663966 is about 1884.6091792020.

The spelling of 6693663966 in words is "six billion, six hundred ninety-three million, six hundred sixty-three thousand, nine hundred sixty-six".