165212522666116 has 12 divisors (see below), whose sum is σ = 298448428042240. Its totient is φ = 79941543225480.

The previous prime is 165212522666011. The next prime is 165212522666141. The reversal of 165212522666116 is 611666225212561.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666179526756 + ... + 666179527003.

Almost surely, 2^{165212522666116} is an apocalyptic number.

It is an amenable number.

165212522666116 is a deficient number, since it is larger than the sum of its proper divisors (133235905376124).

165212522666116 is a wasteful number, since it uses less digits than its factorization.

165212522666116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332359053794 (or 1332359053792 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

Adding to 165212522666116 its reverse (611666225212561), we get a palindrome (776878747878677).

The spelling of 165212522666116 in words is "one hundred sixty-five trillion, two hundred twelve billion, five hundred twenty-two million, six hundred sixty-six thousand, one hundred sixteen".