201143984855 has 16 divisors (see below), whose sum is σ = 270432406944. Its totient is φ = 142332842880.

The previous prime is 201143984843. The next prime is 201143984863. The reversal of 201143984855 is 558489341102.

It is not a de Polignac number, because 201143984855 - 2²⁰ = 201142936279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49419092 + ... + 49423161.

It is an arithmetic number, because the mean of its divisors is an integer number (16902025434).

Almost surely, 2^201143984855 is an apocalyptic number.

201143984855 is a deficient number, since it is larger than the sum of its proper divisors (69288422089).

201143984855 is a wasteful number, since it uses less digits than its factorization.

201143984855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98842306.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 201143984855 in words is "two hundred one billion, one hundred forty-three million, nine hundred eighty-four thousand, eight hundred fifty-five".