2216745604 has 6 divisors (see below), whose sum is σ = 3879304814. Its totient is φ = 1108372800.

The previous prime is 2216745569. The next prime is 2216745611. The reversal of 2216745604 is 4065476122.

It can be written as a sum of positive squares in only one way, i.e., 1912312900 + 304432704 = 43730^2 + 17448^2 .

It is a super-2 number, since 2×2216745604² = 9827922145706649632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277093197 + ... + 277093204.

Almost surely, 2^2216745604 is an apocalyptic number.

It is an amenable number.

2216745604 is a deficient number, since it is larger than the sum of its proper divisors (1662559210).

2216745604 is a wasteful number, since it uses less digits than its factorization.

2216745604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554186405 (or 554186403 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2216745604 is about 47082.3279373482. The cubic root of 2216745604 is about 1303.8829867589.

The spelling of 2216745604 in words is "two billion, two hundred sixteen million, seven hundred forty-five thousand, six hundred four".