2216640032 has 12 divisors (see below), whose sum is σ = 4364010126. Its totient is φ = 1108320000.

The previous prime is 2216640029. The next prime is 2216640037. The reversal of 2216640032 is 2300466122.

It can be written as a sum of positive squares in only one way, i.e., 1734222736 + 482417296 = 41644^2 + 21964^2 .

It is a super-3 number, since 3×2216640032³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2216639983 and 2216640010.

It is not an unprimeable number, because it can be changed into a prime (2216640037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34634969 + ... + 34635032.

Almost surely, 2^2216640032 is an apocalyptic number.

It is an amenable number.

2216640032 is a deficient number, since it is larger than the sum of its proper divisors (2147370094).

2216640032 is an equidigital number, since it uses as much as digits as its factorization.

2216640032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69270011 (or 69270003 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2216640032 is about 47081.2067814749. The cubic root of 2216640032 is about 1303.8622873878.

The spelling of 2216640032 in words is "two billion, two hundred sixteen million, six hundred forty thousand, thirty-two".