1994150366208 has 2112 divisors, whose sum is σ = 8423416135680. Its totient is φ = 437148057600.

The previous prime is 1994150366207. The next prime is 1994150366209. The reversal of 1994150366208 is 8026630514991.

1994150366208 is a `hidden beast` number, since 1 + 9 + 9 + 4 + 1 + 5 + 0 + 3 + 6 + 620 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1994150366207) and next prime (1994150366209).

It is a tau number, because it is divible by the number of its divisors (2112).

It is not an unprimeable number, because it can be changed into a prime (1994150366207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5433652041 + ... + 5433652407.

Almost surely, 2^{1994150366208} is an apocalyptic number.

1994150366208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994150366208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4211708067840).

1994150366208 is an abundant number, since it is smaller than the sum of its proper divisors (6429265769472).

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

1994150366208 is a wasteful number, since it uses less digits than its factorization.

1994150366208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 1994150366208 in words is "one trillion, nine hundred ninety-four billion, one hundred fifty million, three hundred sixty-six thousand, two hundred eight".