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163112742238560 = 25356110935096789
BaseRepresentation
bin100101000101100110100101…
…000011110011100101100000
3210101112102111110101110012020
4211011212211003303211200
5132334414344003113220
61334524543114101440
746233335544562122
oct4505464503634540
9711472443343166
10163112742238560
1147a777a8720524
121636441341a880
137002608ba639a
142c3c9ad8d1212
1513cce0b7d9040
hex9459a50f3960

163112742238560 has 192 divisors, whose sum is σ = 522706069045440. Its totient is φ = 42744518369280.

The previous prime is 163112742238547. The next prime is 163112742238561. The reversal of 163112742238560 is 65832247211361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163112742238561) 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, 29454646 + ... + 34551434.

It is an arithmetic number, because the mean of its divisors is an integer number (2722427442945).

Almost surely, 2163112742238560 is an apocalyptic number.

163112742238560 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 163112742238560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261353034522720).

163112742238560 is an abundant number, since it is smaller than the sum of its proper divisors (359593326806880).

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

163112742238560 is a wasteful number, since it uses less digits than its factorization.

163112742238560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097961 (or 5097953 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 163112742238560 in words is "one hundred sixty-three trillion, one hundred twelve billion, seven hundred forty-two million, two hundred thirty-eight thousand, five hundred sixty".