2216263858 has 4 divisors (see below), whose sum is σ = 3324395790. Its totient is φ = 1108131928.

The previous prime is 2216263853. The next prime is 2216263859. The reversal of 2216263858 is 8583626122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8583626122 = 2 ⋅4291813061.

It can be written as a sum of positive squares in only one way, i.e., 1171487529 + 1044776329 = 34227^2 + 32323^2 .

It is not an unprimeable number, because it can be changed into a prime (2216263853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554065963 + ... + 554065966.

Almost surely, 2^2216263858 is an apocalyptic number.

2216263858 is a deficient number, since it is larger than the sum of its proper divisors (1108131932).

2216263858 is a wasteful number, since it uses less digits than its factorization.

2216263858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108131931.

The product of its digits is 276480, while the sum is 43.

The square root of 2216263858 is about 47077.2116633940. The cubic root of 2216263858 is about 1303.7885260744.

It can be divided in two parts, 2216263 and 858, that added together give a square (2217121 = 1489²).

The spelling of 2216263858 in words is "two billion, two hundred sixteen million, two hundred sixty-three thousand, eight hundred fifty-eight".