199846330020 has 144 divisors (see below), whose sum is σ = 614559778560. Its totient is φ = 52558990848.

The previous prime is 199846329997. The next prime is 199846330067. The reversal of 199846330020 is 20033648991.

It is a happy number.

199846330020 is a `hidden beast` number, since 1 + 9 + 9 + 8 + 4 + 633 + 0 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13544287 + ... + 13559033.

It is an arithmetic number, because the mean of its divisors is an integer number (4267776240).

Almost surely, 2^199846330020 is an apocalyptic number.

199846330020 is a gapful number since it is divisible by the number (10) 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 199846330020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307279889280).

199846330020 is an abundant number, since it is smaller than the sum of its proper divisors (414713448540).

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

199846330020 is a wasteful number, since it uses less digits than its factorization.

199846330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15794 (or 15789 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 199846330020 in words is "one hundred ninety-nine billion, eight hundred forty-six million, three hundred thirty thousand, twenty".