6699969312 has 24 divisors (see below), whose sum is σ = 17587419696. Its totient is φ = 2233323072.

The previous prime is 6699969301. The next prime is 6699969319. The reversal of 6699969312 is 2139699966.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (6699969319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34895578 + ... + 34895769.

It is an arithmetic number, because the mean of its divisors is an integer number (732809154).

Almost surely, 2^6699969312 is an apocalyptic number.

It is an amenable number.

6699969312 is an abundant number, since it is smaller than the sum of its proper divisors (10887450384).

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

6699969312 is a wasteful number, since it uses less digits than its factorization.

6699969312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69791360 (or 69791352 counting only the distinct ones).

The product of its digits is 8503056, while the sum is 60.

The square root of 6699969312 is about 81853.3402617144. The cubic root of 6699969312 is about 1885.2007527515.

The spelling of 6699969312 in words is "six billion, six hundred ninety-nine million, nine hundred sixty-nine thousand, three hundred twelve".