199809822030 has 192 divisors, whose sum is σ = 620127664128. Its totient is φ = 40797630720.

The previous prime is 199809822011. The next prime is 199809822071. The reversal of 199809822030 is 30228908991.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 423769 + ... + 761051.

It is an arithmetic number, because the mean of its divisors is an integer number (3229831584).

Almost surely, 2^199809822030 is an apocalyptic number.

199809822030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 199809822030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310063832064).

199809822030 is an abundant number, since it is smaller than the sum of its proper divisors (420317842098).

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

199809822030 is a wasteful number, since it uses less digits than its factorization.

199809822030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337351 (or 337344 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The spelling of 199809822030 in words is "one hundred ninety-nine billion, eight hundred nine million, eight hundred twenty-two thousand, thirty".