208189082020 has 48 divisors (see below), whose sum is σ = 440588494080. Its totient is φ = 82630319616.

The previous prime is 208189081999. The next prime is 208189082021. The reversal of 208189082020 is 20280981802.

It is not an unprimeable number, because it can be changed into a prime (208189082021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5186949 + ... + 5226931.

It is an arithmetic number, because the mean of its divisors is an integer number (9178926960).

Almost surely, 2^208189082020 is an apocalyptic number.

208189082020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208189082020 is an abundant number, since it is smaller than the sum of its proper divisors (232399412060).

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

208189082020 is a wasteful number, since it uses less digits than its factorization.

208189082020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42004 (or 42002 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 208189082020 in words is "two hundred eight billion, one hundred eighty-nine million, eighty-two thousand, twenty".