204110516346642 has 48 divisors (see below), whose sum is σ = 443431201613400. Its totient is φ = 67853497741056.

The previous prime is 204110516346641. The next prime is 204110516346647. The reversal of 204110516346642 is 246643615011402.

204110516346642 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 1 + 0 + 5 + 1 + 634 + 6 + 6 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 97207551453321 + 106902964893321 = 9859389^2 + 10339389^2 .

It is a super-2 number, since 2×204110516346642² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204110516346641) 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, 624889984 + ... + 625216532.

Almost surely, 2^{204110516346642} is an apocalyptic number.

204110516346642 is an abundant number, since it is smaller than the sum of its proper divisors (239320685266758).

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

204110516346642 is a wasteful number, since it uses less digits than its factorization.

204110516346642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420027 (or 420024 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 204110516346642 in words is "two hundred four trillion, one hundred ten billion, five hundred sixteen million, three hundred forty-six thousand, six hundred forty-two".