205039088881 has 8 divisors (see below), whose sum is σ = 224106696864. Its totient is φ = 186042762720.

The previous prime is 205039088851. The next prime is 205039088899. The reversal of 205039088881 is 188880930502.

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 a de Polignac number, because none of the positive numbers 2^k-205039088881 is a prime.

It is a super-2 number, since 2×205039088881² (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 (205039088851) 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, 17814436 + ... + 17825941.

It is an arithmetic number, because the mean of its divisors is an integer number (28013337108).

Almost surely, 2^205039088881 is an apocalyptic number.

It is an amenable number.

205039088881 is a deficient number, since it is larger than the sum of its proper divisors (19067607983).

205039088881 is a wasteful number, since it uses less digits than its factorization.

205039088881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35640911.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 205039088881 in words is "two hundred five billion, thirty-nine million, eighty-eight thousand, eight hundred eighty-one".