6996666996 has 72 divisors (see below), whose sum is σ = 19815335904. Its totient is φ = 2062895040.

The previous prime is 6996666973. The next prime is 6996666997.

6996666996 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6996666997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 224110 + ... + 253413.

Almost surely, 2^6996666996 is an apocalyptic number.

6996666996 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

6996666996 is an abundant number, since it is smaller than the sum of its proper divisors (12818668908).

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

6996666996 is a wasteful number, since it uses less digits than its factorization.

6996666996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477581 (or 477576 counting only the distinct ones).

The product of its digits is 306110016, while the sum is 72.

The square root of 6996666996 is about 83646.0817731470. The cubic root of 6996666996 is about 1912.6275247017.

The spelling of 6996666996 in words is "six billion, nine hundred ninety-six million, six hundred sixty-six thousand, nine hundred ninety-six".