2220166568 has 32 divisors (see below), whose sum is σ = 4391431200. Its totient is φ = 1049372352.

The previous prime is 2220166567. The next prime is 2220166573. The reversal of 2220166568 is 8656610222.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (2220166567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55346 + ... + 86622.

It is an arithmetic number, because the mean of its divisors is an integer number (137232225).

Almost surely, 2^2220166568 is an apocalyptic number.

It is an amenable number.

2220166568 is a deficient number, since it is larger than the sum of its proper divisors (2171264632).

2220166568 is a wasteful number, since it uses less digits than its factorization.

2220166568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31769 (or 31765 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2220166568 is about 47118.6435288623. The cubic root of 2220166568 is about 1304.5533755427.

The spelling of 2220166568 in words is "two billion, two hundred twenty million, one hundred sixty-six thousand, five hundred sixty-eight".