9966677806 has 8 divisors (see below), whose sum is σ = 15067733760. Its totient is φ = 4944099888.

The previous prime is 9966677803. The next prime is 9966677807. The reversal of 9966677806 is 6087766699.

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

It is a super-2 number, since 2×9966677806² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966677803) 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, 19619191 + ... + 19619698.

It is an arithmetic number, because the mean of its divisors is an integer number (1883466720).

Almost surely, 2^9966677806 is an apocalyptic number.

9966677806 is a deficient number, since it is larger than the sum of its proper divisors (5101055954).

9966677806 is a wasteful number, since it uses less digits than its factorization.

9966677806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39239018.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The square root of 9966677806 is about 99833.2500021912. The cubic root of 9966677806 is about 2152.0390107251.

The spelling of 9966677806 in words is "nine billion, nine hundred sixty-six million, six hundred seventy-seven thousand, eight hundred six".