201155550434334 has 80 divisors (see below), whose sum is σ = 474490436389200. Its totient is φ = 63518792046336.

The previous prime is 201155550434327. The next prime is 201155550434369. The reversal of 201155550434334 is 433434055551102.

201155550434334 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 55 + 550 + 4 + 3 + 43 + 3 + 4 = 666.

201155550434334 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 201155550434334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 46849804 + ... + 50962880.

It is an arithmetic number, because the mean of its divisors is an integer number (5931130454865).

Almost surely, 2^{201155550434334} is an apocalyptic number.

201155550434334 is an abundant number, since it is smaller than the sum of its proper divisors (273334885954866).

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

201155550434334 is a wasteful number, since it uses less digits than its factorization.

201155550434334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128999 (or 4128990 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 201155550434334 in words is "two hundred one trillion, one hundred fifty-five billion, five hundred fifty million, four hundred thirty-four thousand, three hundred thirty-four".