2216107360161 has 6 divisors (see below), whose sum is σ = 3201043964690. Its totient is φ = 1477404906768.

The previous prime is 2216107360157. The next prime is 2216107360261. The reversal of 2216107360161 is 1610637016122.

2216107360161 is a `hidden beast` number, since 2 + 2 + 1 + 610 + 7 + 36 + 0 + 1 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2133223829136 + 82883531025 = 1460556^2 + 287895^2 .

It is not a de Polignac number, because 2216107360161 - 2² = 2216107360157 is a prime.

It is a super-2 number, since 2×2216107360161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216107360121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123117075556 + ... + 123117075573.

Almost surely, 2^{2216107360161} is an apocalyptic number.

It is an amenable number.

2216107360161 is a deficient number, since it is larger than the sum of its proper divisors (984936604529).

2216107360161 is a wasteful number, since it uses less digits than its factorization.

2216107360161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246234151135 (or 246234151132 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The spelling of 2216107360161 in words is "two trillion, two hundred sixteen billion, one hundred seven million, three hundred sixty thousand, one hundred sixty-one".