199420336908 has 60 divisors (see below), whose sum is σ = 561426022080. Its totient is φ = 61360102368.

The previous prime is 199420336903. The next prime is 199420336931. The reversal of 199420336908 is 809633024991.

199420336908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (199420336903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23668668 + ... + 23677091.

It is an arithmetic number, because the mean of its divisors is an integer number (9357100368).

Almost surely, 2^199420336908 is an apocalyptic number.

199420336908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

199420336908 is an abundant number, since it is smaller than the sum of its proper divisors (362005685172).

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

199420336908 is a wasteful number, since it uses less digits than its factorization.

199420336908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47345788 (or 47345777 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 199420336908 in words is "one hundred ninety-nine billion, four hundred twenty million, three hundred thirty-six thousand, nine hundred eight".