2215550234665 has 8 divisors (see below), whose sum is σ = 2715227521920. Its totient is φ = 1734728694192.

The previous prime is 2215550234663. The next prime is 2215550234683. The reversal of 2215550234665 is 5664320555122.

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 2215550234665 - 2¹ = 2215550234663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215550234663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4713936435 + ... + 4713936904.

It is an arithmetic number, because the mean of its divisors is an integer number (339403440240).

Almost surely, 2^{2215550234665} is an apocalyptic number.

It is an amenable number.

2215550234665 is a deficient number, since it is larger than the sum of its proper divisors (499677287255).

2215550234665 is an equidigital number, since it uses as much as digits as its factorization.

2215550234665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427873391.

The product of its (nonzero) digits is 2160000, while the sum is 46.

Adding to 2215550234665 its reverse (5664320555122), we get a palindrome (7879870789787).

The spelling of 2215550234665 in words is "two trillion, two hundred fifteen billion, five hundred fifty million, two hundred thirty-four thousand, six hundred sixty-five".