163326401397120 has 1024 divisors, whose sum is σ = 590428694016000. Its totient is φ = 38139281276928.

The previous prime is 163326401397077. The next prime is 163326401397197. The reversal of 163326401397120 is 21793104623361.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 163326401397120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5160539056 + ... + 5160570704.

It is an arithmetic number, because the mean of its divisors is an integer number (576590521500).

Almost surely, 2^{163326401397120} is an apocalyptic number.

163326401397120 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 163326401397120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295214347008000).

163326401397120 is an abundant number, since it is smaller than the sum of its proper divisors (427102292618880).

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

163326401397120 is a wasteful number, since it uses less digits than its factorization.

163326401397120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31867 (or 31855 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 163326401397120 in words is "one hundred sixty-three trillion, three hundred twenty-six billion, four hundred one million, three hundred ninety-seven thousand, one hundred twenty".