9866199418704 has 120 divisors (see below), whose sum is σ = 29065976513600. Its totient is φ = 3115526561280.

The previous prime is 9866199418667. The next prime is 9866199418727. The reversal of 9866199418704 is 4078149916689.

9866199418704 is a `hidden beast` number, since 9 + 86 + 61 + 9 + 9 + 418 + 70 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102801012 + ... + 102896940.

Almost surely, 2^{9866199418704} is an apocalyptic number.

It is an amenable number.

9866199418704 is an abundant number, since it is smaller than the sum of its proper divisors (19199777094896).

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

9866199418704 is a wasteful number, since it uses less digits than its factorization.

9866199418704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133553 (or 133544 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 72.

The spelling of 9866199418704 in words is "nine trillion, eight hundred sixty-six billion, one hundred ninety-nine million, four hundred eighteen thousand, seven hundred four".