163671399689142 has 16 divisors (see below), whose sum is σ = 332709074778672. Its totient is φ = 53662753996320.

The previous prime is 163671399689123. The next prime is 163671399689153. The reversal of 163671399689142 is 241986993176361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223594807953 + ... + 223594808684.

It is an arithmetic number, because the mean of its divisors is an integer number (20794317173667).

Almost surely, 2^{163671399689142} is an apocalyptic number.

163671399689142 is an abundant number, since it is smaller than the sum of its proper divisors (169037675089530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163671399689142 is a wasteful number, since it uses less digits than its factorization.

163671399689142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447189616703.

The product of its digits is 634894848, while the sum is 75.

The spelling of 163671399689142 in words is "one hundred sixty-three trillion, six hundred seventy-one billion, three hundred ninety-nine million, six hundred eighty-nine thousand, one hundred forty-two".