208140081360 has 40 divisors (see below), whose sum is σ = 645234252960. Its totient is φ = 55504021632.

The previous prime is 208140081269. The next prime is 208140081361. The reversal of 208140081360 is 63180041802.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208140081361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433624930 + ... + 433625409.

It is an arithmetic number, because the mean of its divisors is an integer number (16130856324).

Almost surely, 2^208140081360 is an apocalyptic number.

208140081360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208140081360 is an abundant number, since it is smaller than the sum of its proper divisors (437094171600).

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

208140081360 is a wasteful number, since it uses less digits than its factorization.

208140081360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867250355 (or 867250349 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 208140081360 in words is "two hundred eight billion, one hundred forty million, eighty-one thousand, three hundred sixty".