208038788081 has 8 divisors (see below), whose sum is σ = 221156400000. Its totient is φ = 195137996400.

The previous prime is 208038788063. The next prime is 208038788143. The reversal of 208038788081 is 180887830802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208038788081 - 2⁶ = 208038788017 is a prime.

It is a super-2 number, since 2×208038788081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208038788051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54203081 + ... + 54206918.

It is an arithmetic number, because the mean of its divisors is an integer number (27644550000).

Almost surely, 2^208038788081 is an apocalyptic number.

It is an amenable number.

208038788081 is a deficient number, since it is larger than the sum of its proper divisors (13117611919).

208038788081 is a wasteful number, since it uses less digits than its factorization.

208038788081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108410119.

The product of its (nonzero) digits is 1376256, while the sum is 53.

The spelling of 208038788081 in words is "two hundred eight billion, thirty-eight million, seven hundred eighty-eight thousand, eighty-one".