2216355493 has 16 divisors (see below), whose sum is σ = 2482292736. Its totient is φ = 1961472240.

The previous prime is 2216355469. The next prime is 2216355503. The reversal of 2216355493 is 3945536122.

It is a cyclic number.

It is not a de Polignac number, because 2216355493 - 2⁵ = 2216355461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216355443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137580 + ... + 152842.

It is an arithmetic number, because the mean of its divisors is an integer number (155143296).

Almost surely, 2^2216355493 is an apocalyptic number.

It is an amenable number.

2216355493 is a deficient number, since it is larger than the sum of its proper divisors (265937243).

2216355493 is a wasteful number, since it uses less digits than its factorization.

2216355493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15624.

The product of its digits is 194400, while the sum is 40.

The square root of 2216355493 is about 47078.1848949171. The cubic root of 2216355493 is about 1303.8064949058.

The spelling of 2216355493 in words is "two billion, two hundred sixteen million, three hundred fifty-five thousand, four hundred ninety-three".