2168200818 has 32 divisors (see below), whose sum is σ = 5506542720. Its totient is φ = 619485840.

The previous prime is 2168200817. The next prime is 2168200819. The reversal of 2168200818 is 8180028612.

It is an interprime number because it is at equal distance from previous prime (2168200817) and next prime (2168200819).

It is not an unprimeable number, because it can be changed into a prime (2168200817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2867613 + ... + 2868368.

It is an arithmetic number, because the mean of its divisors is an integer number (172079460).

Almost surely, 2^2168200818 is an apocalyptic number.

2168200818 is an abundant number, since it is smaller than the sum of its proper divisors (3338341902).

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

2168200818 is a wasteful number, since it uses less digits than its factorization.

2168200818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735999 (or 5735993 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 2168200818 is about 46563.9433252812. The cubic root of 2168200818 is about 1294.2946856659.

The spelling of 2168200818 in words is "two billion, one hundred sixty-eight million, two hundred thousand, eight hundred eighteen".