2113659558 has 48 divisors (see below), whose sum is σ = 4710625920. Its totient is φ = 684453888.

The previous prime is 2113659547. The next prime is 2113659571. The reversal of 2113659558 is 8559563112.

2113659558 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 6 + 595 + 58 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 510091 + ... + 514217.

It is an arithmetic number, because the mean of its divisors is an integer number (98138040).

Almost surely, 2^2113659558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2113659558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355312960).

2113659558 is an abundant number, since it is smaller than the sum of its proper divisors (2596966362).

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

2113659558 is a wasteful number, since it uses less digits than its factorization.

2113659558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941 (or 4938 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 2113659558 is about 45974.5533746659. The cubic root of 2113659558 is about 1283.3496976306.

The spelling of 2113659558 in words is "two billion, one hundred thirteen million, six hundred fifty-nine thousand, five hundred fifty-eight".