202855456161 has 64 divisors (see below), whose sum is σ = 308396160000. Its totient is φ = 131736084480.

The previous prime is 202855456159. The next prime is 202855456241. The reversal of 202855456161 is 161654558202.

202855456161 is a `hidden beast` number, since 2 + 0 + 2 + 85 + 5 + 4 + 561 + 6 + 1 = 666.

202855456161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202855456161 - 2¹ = 202855456159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202855456261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153561381 + ... + 153562701.

It is an arithmetic number, because the mean of its divisors is an integer number (4818690000).

Almost surely, 2^202855456161 is an apocalyptic number.

It is an amenable number.

202855456161 is a deficient number, since it is larger than the sum of its proper divisors (105540703839).

202855456161 is a wasteful number, since it uses less digits than its factorization.

202855456161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2065 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 202855456161 in words is "two hundred two billion, eight hundred fifty-five million, four hundred fifty-six thousand, one hundred sixty-one".