2215663223667 has 16 divisors (see below), whose sum is σ = 2996646140160. Its totient is φ = 1455905948000.

The previous prime is 2215663223647. The next prime is 2215663223723. The reversal of 2215663223667 is 7663223665122.

It is a cyclic number.

It is not a de Polignac number, because 2215663223667 - 2¹⁴ = 2215663207283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215663223647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642084 + ... + 2200817.

It is an arithmetic number, because the mean of its divisors is an integer number (187290383760).

Almost surely, 2^{2215663223667} is an apocalyptic number.

2215663223667 is a deficient number, since it is larger than the sum of its proper divisors (780982916493).

2215663223667 is a wasteful number, since it uses less digits than its factorization.

2215663223667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846634.

The product of its digits is 6531840, while the sum is 51.

Adding to 2215663223667 its reverse (7663223665122), we get a palindrome (9878886888789).

The spelling of 2215663223667 in words is "two trillion, two hundred fifteen billion, six hundred sixty-three million, two hundred twenty-three thousand, six hundred sixty-seven".