205115504094 has 40 divisors (see below), whose sum is σ = 465428552160. Its totient is φ = 67506364224.

The previous prime is 205115504059. The next prime is 205115504107. The reversal of 205115504094 is 490405511502.

205115504094 is a `hidden beast` number, since 2 + 0 + 5 + 11 + 550 + 4 + 0 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8000779 + ... + 8026374.

It is an arithmetic number, because the mean of its divisors is an integer number (11635713804).

Almost surely, 2^205115504094 is an apocalyptic number.

205115504094 is an abundant number, since it is smaller than the sum of its proper divisors (260313048066).

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

205115504094 is a wasteful number, since it uses less digits than its factorization.

205115504094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16027246 (or 16027237 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 205115504094 in words is "two hundred five billion, one hundred fifteen million, five hundred four thousand, ninety-four".