163369543680 has 1152 divisors, whose sum is σ = 699124608000. Its totient is φ = 36044144640.

The previous prime is 163369543637. The next prime is 163369543681. The reversal of 163369543680 is 86345963361.

163369543680 is a `hidden beast` number, since 1 + 6 + 3 + 36 + 9 + 543 + 68 + 0 = 666.

163369543680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a super-2 number, since 2×163369543680² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163369543681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 419972926 + ... + 419973314.

It is an arithmetic number, because the mean of its divisors is an integer number (606879000).

Almost surely, 2^163369543680 is an apocalyptic number.

163369543680 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 163369543680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349562304000).

163369543680 is an abundant number, since it is smaller than the sum of its proper divisors (535755064320).

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

163369543680 is a wasteful number, since it uses less digits than its factorization.

163369543680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 163369543680 in words is "one hundred sixty-three billion, three hundred sixty-nine million, five hundred forty-three thousand, six hundred eighty".