9966807700 has 18 divisors (see below), whose sum is σ = 21627972926. Its totient is φ = 3986723040.

The previous prime is 9966807691. The next prime is 9966807709. The reversal of 9966807700 is 77086699.

It is an interprime number because it is at equal distance from previous prime (9966807691) and next prime (9966807709).

It can be written as a sum of positive squares in 3 ways, for example, as 3034247056 + 6932560644 = 55084^2 + 83262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966807709) 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 5 ways as a sum of consecutive naturals, for example, 49833939 + ... + 49834138.

Almost surely, 2^9966807700 is an apocalyptic number.

It is an amenable number.

9966807700 is an abundant number, since it is smaller than the sum of its proper divisors (11661165226).

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

9966807700 is a wasteful number, since it uses less digits than its factorization.

9966807700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99668091 (or 99668084 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 9966807700 is about 99833.9005548716. The cubic root of 9966807700 is about 2152.0483597361.

The spelling of 9966807700 in words is "nine billion, nine hundred sixty-six million, eight hundred seven thousand, seven hundred".