194983996320 has 144 divisors (see below), whose sum is σ = 688327272360. Its totient is φ = 50202765312.

The previous prime is 194983996309. The next prime is 194983996321. The reversal of 194983996320 is 23699389491.

194983996320 is a `hidden beast` number, since 1 + 9 + 498 + 39 + 96 + 3 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 168891409296 + 26092587024 = 410964^2 + 161532^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (194983996321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2292819 + ... + 2376338.

Almost surely, 2^194983996320 is an apocalyptic number.

194983996320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194983996320 is an abundant number, since it is smaller than the sum of its proper divisors (493343276040).

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

194983996320 is a wasteful number, since it uses less digits than its factorization.

194983996320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4669207 (or 4669196 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 63.

The spelling of 194983996320 in words is "one hundred ninety-four billion, nine hundred eighty-three million, nine hundred ninety-six thousand, three hundred twenty".