205651105116 has 72 divisors (see below), whose sum is σ = 491755629456. Its totient is φ = 66889858560.

The previous prime is 205651105103. The next prime is 205651105117. The reversal of 205651105116 is 611501156502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205651105117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8921686 + ... + 8944706.

It is an arithmetic number, because the mean of its divisors is an integer number (6829939298).

Almost surely, 2^205651105116 is an apocalyptic number.

It is an amenable number.

205651105116 is an abundant number, since it is smaller than the sum of its proper divisors (286104524340).

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

205651105116 is a wasteful number, since it uses less digits than its factorization.

205651105116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23459 (or 23410 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The spelling of 205651105116 in words is "two hundred five billion, six hundred fifty-one million, one hundred five thousand, one hundred sixteen".