163242178560 has 576 divisors, whose sum is σ = 591956164800. Its totient is φ = 41551921152.

The previous prime is 163242178553. The next prime is 163242178577. The reversal of 163242178560 is 65871242361.

163242178560 is a `hidden beast` number, since 1 + 6 + 32 + 42 + 17 + 8 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×163242178560² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275281624 + ... + 275282216.

It is an arithmetic number, because the mean of its divisors is an integer number (1027701675).

Almost surely, 2^163242178560 is an apocalyptic number.

163242178560 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 163242178560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295978082400).

163242178560 is an abundant number, since it is smaller than the sum of its proper divisors (428713986240).

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

163242178560 is a wasteful number, since it uses less digits than its factorization.

163242178560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 163242178560 in words is "one hundred sixty-three billion, two hundred forty-two million, one hundred seventy-eight thousand, five hundred sixty".