163644265116412 has 12 divisors (see below), whose sum is σ = 286528109660856. Its totient is φ = 81779090927600.

The previous prime is 163644265116391. The next prime is 163644265116457. The reversal of 163644265116412 is 214611562446361.

It is a self number, because there is not a number n which added to its sum of digits gives 163644265116412.

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, 10760399098 + ... + 10760414305.

It is an arithmetic number, because the mean of its divisors is an integer number (23877342471738).

Almost surely, 2^{163644265116412} is an apocalyptic number.

It is an amenable number.

163644265116412 is a deficient number, since it is larger than the sum of its proper divisors (122883844544444).

163644265116412 is a wasteful number, since it uses less digits than its factorization.

163644265116412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21520815308 (or 21520815306 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 52.

The spelling of 163644265116412 in words is "one hundred sixty-three trillion, six hundred forty-four billion, two hundred sixty-five million, one hundred sixteen thousand, four hundred twelve".