165001116661016 has 32 divisors (see below), whose sum is σ = 311298174235440. Its totient is φ = 81989752946688.

The previous prime is 165001116661013. The next prime is 165001116661061. The reversal of 165001116661016 is 610166611100561.

It is a super-3 number, since 3×165001116661016³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165001116661013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91781186 + ... + 93561681.

Almost surely, 2^{165001116661016} is an apocalyptic number.

It is an amenable number.

165001116661016 is a deficient number, since it is larger than the sum of its proper divisors (146297057574424).

165001116661016 is a wasteful number, since it uses less digits than its factorization.

165001116661016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185343563 (or 185343559 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 41.

Adding to 165001116661016 its reverse (610166611100561), we get a palindrome (775167727761577).

The spelling of 165001116661016 in words is "one hundred sixty-five trillion, one billion, one hundred sixteen million, six hundred sixty-one thousand, sixteen".