2216161357 has 2 divisors, whose sum is σ = 2216161358. Its totient is φ = 2216161356.

The previous prime is 2216161351. The next prime is 2216161369. The reversal of 2216161357 is 7531616122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1676574916 + 539586441 = 40946^2 + 23229^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216161357 - 2³¹ = 68677709 is a prime.

It is a super-2 number, since 2×2216161357² = 9822742320520162898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2216161351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108080678 + 1108080679.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080679).

Almost surely, 2^2216161357 is an apocalyptic number.

It is an amenable number.

2216161357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216161357 is an equidigital number, since it uses as much as digits as its factorization.

2216161357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 2216161357 is about 47076.1230030681. The cubic root of 2216161357 is about 1303.7684259274.

Adding to 2216161357 its reverse (7531616122), we get a palindrome (9747777479).

The spelling of 2216161357 in words is "two billion, two hundred sixteen million, one hundred sixty-one thousand, three hundred fifty-seven".