2164608018 has 24 divisors (see below), whose sum is σ = 4692070656. Its totient is φ = 721215000.

The previous prime is 2164608013. The next prime is 2164608031. The reversal of 2164608018 is 8108064612.

2164608018 is a `hidden beast` number, since 2 + 1 + 646 + 0 + 8 + 0 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2164608013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16743 + ... + 67893.

It is an arithmetic number, because the mean of its divisors is an integer number (195502944).

Almost surely, 2^2164608018 is an apocalyptic number.

2164608018 is an abundant number, since it is smaller than the sum of its proper divisors (2527462638).

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

2164608018 is a wasteful number, since it uses less digits than its factorization.

2164608018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53510 (or 53507 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2164608018 is about 46525.3481233617. The cubic root of 2164608018 is about 1293.5793901747.

The spelling of 2164608018 in words is "two billion, one hundred sixty-four million, six hundred eight thousand, eighteen".