2217530166 has 32 divisors (see below), whose sum is σ = 4678679040. Its totient is φ = 698743584.

The previous prime is 2217530143. The next prime is 2217530177. The reversal of 2217530166 is 6610357122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31776 + ... + 73788.

It is an arithmetic number, because the mean of its divisors is an integer number (146208720).

Almost surely, 2^2217530166 is an apocalyptic number.

2217530166 is an abundant number, since it is smaller than the sum of its proper divisors (2461148874).

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

2217530166 is a wasteful number, since it uses less digits than its factorization.

2217530166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42500.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2217530166 is about 47090.6590100415. The cubic root of 2217530166 is about 1304.0367942715.

Adding to 2217530166 its reverse (6610357122), we get a palindrome (8827887288).

The spelling of 2217530166 in words is "two billion, two hundred seventeen million, five hundred thirty thousand, one hundred sixty-six".