9966184378 has 8 divisors (see below), whose sum is σ = 14955363360. Its totient is φ = 4981063260.

The previous prime is 9966184369. The next prime is 9966184427. The reversal of 9966184378 is 8734816699.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008318 + ... + 1018153.

It is an arithmetic number, because the mean of its divisors is an integer number (1869420420).

Almost surely, 2^9966184378 is an apocalyptic number.

9966184378 is a deficient number, since it is larger than the sum of its proper divisors (4989178982).

9966184378 is a wasteful number, since it uses less digits than its factorization.

9966184378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028932.

The product of its digits is 15676416, while the sum is 61.

The square root of 9966184378 is about 99830.7787107764. The cubic root of 9966184378 is about 2152.0034959210.

The spelling of 9966184378 in words is "nine billion, nine hundred sixty-six million, one hundred eighty-four thousand, three hundred seventy-eight".