163886454144 has 256 divisors, whose sum is σ = 563226048000. Its totient is φ = 45940856832.

The previous prime is 163886454143. The next prime is 163886454181. The reversal of 163886454144 is 441454688361.

163886454144 is a `hidden beast` number, since 1 + 6 + 38 + 8 + 64 + 541 + 4 + 4 = 666.

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 (163886454143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1218267 + ... + 1346085.

It is an arithmetic number, because the mean of its divisors is an integer number (2200101750).

Almost surely, 2^163886454144 is an apocalyptic number.

163886454144 is a gapful number since it is divisible by the number (14) 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 163886454144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281613024000).

163886454144 is an abundant number, since it is smaller than the sum of its proper divisors (399339593856).

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

163886454144 is a wasteful number, since it uses less digits than its factorization.

163886454144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127902 (or 127884 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 163886454144 in words is "one hundred sixty-three billion, eight hundred eighty-six million, four hundred fifty-four thousand, one hundred forty-four".