6699911212 has 6 divisors (see below), whose sum is σ = 11724844628. Its totient is φ = 3349955604.

The previous prime is 6699911173. The next prime is 6699911213. The reversal of 6699911212 is 2121199966.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6699911213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837488898 + ... + 837488905.

Almost surely, 2^6699911212 is an apocalyptic number.

It is an amenable number.

6699911212 is a deficient number, since it is larger than the sum of its proper divisors (5024933416).

6699911212 is a wasteful number, since it uses less digits than its factorization.

6699911212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674977807 (or 1674977805 counting only the distinct ones).

The product of its digits is 104976, while the sum is 46.

The square root of 6699911212 is about 81852.9853578964. The cubic root of 6699911212 is about 1885.1953034489.

The spelling of 6699911212 in words is "six billion, six hundred ninety-nine million, nine hundred eleven thousand, two hundred twelve".