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131168595168 = 2532131912714519
BaseRepresentation
bin111101000101001000…
…0011110110011100000
3110112120100212000211100
41322022100132303200
54122113130021133
6140131422114400
712322323443232
oct1721220366340
9415510760740
10131168595168
11506a0285a66
122150811ba00
13c4a5021770
1464c4782252
15362a748e13
hex1e8a41ece0

131168595168 has 288 divisors, whose sum is σ = 426204979200. Its totient is φ = 37931701248.

The previous prime is 131168595157. The next prime is 131168595169. The reversal of 131168595168 is 861595861131.

131168595168 is a `hidden beast` number, since 1 + 3 + 11 + 68 + 59 + 516 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131168595169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9027013 + ... + 9041531.

It is an arithmetic number, because the mean of its divisors is an integer number (1479878400).

Almost surely, 2131168595168 is an apocalyptic number.

131168595168 is a gapful number since it is divisible by the number (18) 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 131168595168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213102489600).

131168595168 is an abundant number, since it is smaller than the sum of its proper divisors (295036384032).

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

131168595168 is a wasteful number, since it uses less digits than its factorization.

131168595168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14694 (or 14683 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 54.

The spelling of 131168595168 in words is "one hundred thirty-one billion, one hundred sixty-eight million, five hundred ninety-five thousand, one hundred sixty-eight".