2216517755 has 8 divisors (see below), whose sum is σ = 2673748224. Its totient is φ = 1763929600.

The previous prime is 2216517727. The next prime is 2216517757. The reversal of 2216517755 is 5577156122.

It is a happy number.

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

It is not a de Polignac number, because 2216517755 - 2⁶ = 2216517691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216517757) 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, 1159526 + ... + 1161435.

It is an arithmetic number, because the mean of its divisors is an integer number (334218528).

Almost surely, 2^2216517755 is an apocalyptic number.

2216517755 is a deficient number, since it is larger than the sum of its proper divisors (457230469).

2216517755 is a wasteful number, since it uses less digits than its factorization.

2216517755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321157.

The product of its digits is 147000, while the sum is 41.

The square root of 2216517755 is about 47079.9081881008. The cubic root of 2216517755 is about 1303.8383118665.

The spelling of 2216517755 in words is "two billion, two hundred sixteen million, five hundred seventeen thousand, seven hundred fifty-five".