2216651586 has 16 divisors (see below), whose sum is σ = 4442122944. Its totient is φ = 737413904.

The previous prime is 2216651557. The next prime is 2216651597. The reversal of 2216651586 is 6851566122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364221 + ... + 370256.

It is an arithmetic number, because the mean of its divisors is an integer number (277632684).

Almost surely, 2^2216651586 is an apocalyptic number.

2216651586 is an abundant number, since it is smaller than the sum of its proper divisors (2225471358).

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

2216651586 is a wasteful number, since it uses less digits than its factorization.

2216651586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734985.

The product of its digits is 172800, while the sum is 42.

The square root of 2216651586 is about 47081.3294842021. The cubic root of 2216651586 is about 1303.8645527983.

The spelling of 2216651586 in words is "two billion, two hundred sixteen million, six hundred fifty-one thousand, five hundred eighty-six".