204235055166 has 16 divisors (see below), whose sum is σ = 421646565888. Its totient is φ = 65882275800.

The previous prime is 204235055149. The next prime is 204235055173. The reversal of 204235055166 is 661550532402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549018780 + ... + 549019151.

It is an arithmetic number, because the mean of its divisors is an integer number (26352910368).

Almost surely, 2^204235055166 is an apocalyptic number.

204235055166 is an abundant number, since it is smaller than the sum of its proper divisors (217411510722).

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

204235055166 is a wasteful number, since it uses less digits than its factorization.

204235055166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098037967.

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 204235055166 its reverse (661550532402), we get a palindrome (865785587568).

The spelling of 204235055166 in words is "two hundred four billion, two hundred thirty-five million, fifty-five thousand, one hundred sixty-six".