201016442889 has 24 divisors (see below), whose sum is σ = 303013825920. Its totient is φ = 128170639872.

The previous prime is 201016442881. The next prime is 201016442923. The reversal of 201016442889 is 988244610102.

201016442889 is a `hidden beast` number, since 20 + 101 + 6 + 442 + 8 + 89 = 666.

It is not a de Polignac number, because 201016442889 - 2³ = 201016442881 is a prime.

It is a super-2 number, since 2×201016442889² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201016442881) 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, 2094057 + ... + 2187945.

It is an arithmetic number, because the mean of its divisors is an integer number (12625576080).

Almost surely, 2^201016442889 is an apocalyptic number.

It is an amenable number.

201016442889 is a deficient number, since it is larger than the sum of its proper divisors (101997383031).

201016442889 is a wasteful number, since it uses less digits than its factorization.

201016442889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104261 (or 104258 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 201016442889 in words is "two hundred one billion, sixteen million, four hundred forty-two thousand, eight hundred eighty-nine".