65616222602122 has 16 divisors (see below), whose sum is σ = 98456518270440. Its totient is φ = 32797383838912.

The previous prime is 65616222602111. The next prime is 65616222602167. The reversal of 65616222602122 is 22120622261656.

It can be written as a sum of positive squares in 4 ways, for example, as 54042067471561 + 11574155130561 = 7351331^2 + 3402081^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223015404 + ... + 223309432.

Almost surely, 2^{65616222602122} is an apocalyptic number.

65616222602122 is a deficient number, since it is larger than the sum of its proper divisors (32840295668318).

65616222602122 is a wasteful number, since it uses less digits than its factorization.

65616222602122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330137.

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 65616222602122 its reverse (22120622261656), we get a palindrome (87736844863778).

The spelling of 65616222602122 in words is "sixty-five trillion, six hundred sixteen billion, two hundred twenty-two million, six hundred two thousand, one hundred twenty-two".