2116226631617 has 4 divisors (see below), whose sum is σ = 2418544721856. Its totient is φ = 1813908541380.

The previous prime is 2116226631613. The next prime is 2116226631637. The reversal of 2116226631617 is 7161366226112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2116226631617 - 2² = 2116226631613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116226631613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151159045109 + ... + 151159045122.

It is an arithmetic number, because the mean of its divisors is an integer number (604636180464).

Almost surely, 2^{2116226631617} is an apocalyptic number.

It is an amenable number.

2116226631617 is a deficient number, since it is larger than the sum of its proper divisors (302318090239).

2116226631617 is an equidigital number, since it uses as much as digits as its factorization.

2116226631617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302318090238.

The product of its digits is 217728, while the sum is 44.

The spelling of 2116226631617 in words is "two trillion, one hundred sixteen billion, two hundred twenty-six million, six hundred thirty-one thousand, six hundred seventeen".