165646416405112 has 16 divisors (see below), whose sum is σ = 311257845087840. Its totient is φ = 82644324381696.

The previous prime is 165646416405089. The next prime is 165646416405157. The reversal of 165646416405112 is 211504614646561.

It is a self number, because there is not a number n which added to its sum of digits gives 165646416405112.

It is a congruent number.

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, 22360473673 + ... + 22360481080.

It is an arithmetic number, because the mean of its divisors is an integer number (19453615317990).

Almost surely, 2^{165646416405112} is an apocalyptic number.

It is an amenable number.

165646416405112 is a deficient number, since it is larger than the sum of its proper divisors (145611428682728).

165646416405112 is a wasteful number, since it uses less digits than its factorization.

165646416405112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44720955222 (or 44720955218 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 165646416405112 in words is "one hundred sixty-five trillion, six hundred forty-six billion, four hundred sixteen million, four hundred five thousand, one hundred twelve".