2216155605663 has 8 divisors (see below), whose sum is σ = 3017743803648. Its totient is φ = 1446002239064.

The previous prime is 2216155605647. The next prime is 2216155605739. The reversal of 2216155605663 is 3665065516122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216155605663 - 2⁴ = 2216155605647 is a prime.

It is a super-2 number, since 2×2216155605663² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216155605263) 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, 7858707681 + ... + 7858707962.

It is an arithmetic number, because the mean of its divisors is an integer number (377217975456).

Almost surely, 2^{2216155605663} is an apocalyptic number.

2216155605663 is a deficient number, since it is larger than the sum of its proper divisors (801588197985).

2216155605663 is a wasteful number, since it uses less digits than its factorization.

2216155605663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15717415693.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 2216155605663 in words is "two trillion, two hundred sixteen billion, one hundred fifty-five million, six hundred five thousand, six hundred sixty-three".