163543213126040 has 128 divisors (see below), whose sum is σ = 408005614080000. Its totient is φ = 58500798220800.

The previous prime is 163543213126019. The next prime is 163543213126067. The reversal of 163543213126040 is 40621312345361.

It is a happy number.

163543213126040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 739286 + ... + 18100634.

It is an arithmetic number, because the mean of its divisors is an integer number (3187543860000).

Almost surely, 2^{163543213126040} is an apocalyptic number.

163543213126040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163543213126040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204002807040000).

163543213126040 is an abundant number, since it is smaller than the sum of its proper divisors (244462400953960).

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

163543213126040 is a wasteful number, since it uses less digits than its factorization.

163543213126040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17361721 (or 17361717 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 163543213126040 in words is "one hundred sixty-three trillion, five hundred forty-three billion, two hundred thirteen million, one hundred twenty-six thousand, forty".