199135933920 has 864 divisors, whose sum is σ = 885414426624. Its totient is φ = 41372052480.

The previous prime is 199135933907. The next prime is 199135933943. The reversal of 199135933920 is 29339531991.

199135933920 is a `hidden beast` number, since 1 + 9 + 9 + 13 + 593 + 39 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 32928337 + ... + 32934383.

It is an arithmetic number, because the mean of its divisors is an integer number (1024785216).

Almost surely, 2^199135933920 is an apocalyptic number.

199135933920 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 199135933920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442707213312).

199135933920 is an abundant number, since it is smaller than the sum of its proper divisors (686278492704).

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

199135933920 is a wasteful number, since it uses less digits than its factorization.

199135933920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6106 (or 6075 counting only the distinct ones).

The product of its (nonzero) digits is 1771470, while the sum is 54.

The spelling of 199135933920 in words is "one hundred ninety-nine billion, one hundred thirty-five million, nine hundred thirty-three thousand, nine hundred twenty".