208161080 has 16 divisors (see below), whose sum is σ = 468362520. Its totient is φ = 83264416.

The previous prime is 208161067. The next prime is 208161089. The reversal of 208161080 is 80161802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208161089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2601974 + ... + 2602053.

Almost surely, 2^208161080 is an apocalyptic number.

208161080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208161080 is an abundant number, since it is smaller than the sum of its proper divisors (260201440).

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

208161080 is a wasteful number, since it uses less digits than its factorization.

208161080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204038 (or 5204034 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 208161080 is about 14427.7884653193. The cubic root of 208161080 is about 592.6521225709.

The spelling of 208161080 in words is "two hundred eight million, one hundred sixty-one thousand, eighty".