2216670066 has 96 divisors (see below), whose sum is σ = 5359011840. Its totient is φ = 657590400.

The previous prime is 2216670047. The next prime is 2216670067. The reversal of 2216670066 is 6600766122.

2216670066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2216670066.

It is not an unprimeable number, because it can be changed into a prime (2216670067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3126120 + ... + 3126828.

It is an arithmetic number, because the mean of its divisors is an integer number (55823040).

Almost surely, 2^2216670066 is an apocalyptic number.

2216670066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216670066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2679505920).

2216670066 is an abundant number, since it is smaller than the sum of its proper divisors (3142341774).

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

2216670066 is a wasteful number, since it uses less digits than its factorization.

2216670066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 2216670066 is about 47081.5257399333. The cubic root of 2216670066 is about 1303.8681761838.

The spelling of 2216670066 in words is "two billion, two hundred sixteen million, six hundred seventy thousand, sixty-six".