2216450515 has 8 divisors (see below), whose sum is σ = 2663444160. Its totient is φ = 1770691392.

The previous prime is 2216450477. The next prime is 2216450519. The reversal of 2216450515 is 5150546122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2216450515 - 2⁷ = 2216450387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2216450519) 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, 304674 + ... + 311863.

It is an arithmetic number, because the mean of its divisors is an integer number (332930520).

Almost surely, 2^2216450515 is an apocalyptic number.

2216450515 is a deficient number, since it is larger than the sum of its proper divisors (446993645).

2216450515 is an equidigital number, since it uses as much as digits as its factorization.

2216450515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617261.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2216450515 is about 47079.1940776390. The cubic root of 2216450515 is about 1303.8251273756.

Adding to 2216450515 its reverse (5150546122), we get a palindrome (7366996637).

The spelling of 2216450515 in words is "two billion, two hundred sixteen million, four hundred fifty thousand, five hundred fifteen".