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160640000000 = 21357251
BaseRepresentation
bin1001010110011011100…
…0111110000000000000
3120100122021111111221122
42111212320332000000
510112442320000000
6201444052411412
714414544320264
oct2254670760000
9510567444848
10160640000000
1162144101687
1227172016b68
13121c0a2c04c
147abc9100a4
1542a2c5c085
hex2566e3e000

160640000000 has 224 divisors, whose sum is σ = 403174358496. Its totient is φ = 64000000000.

The previous prime is 160639999999. The next prime is 160640000011. The reversal of 160640000000 is 46061.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639999875 + ... + 640000125.

It is an arithmetic number, because the mean of its divisors is an integer number (1799885529).

Almost surely, 2160640000000 is an apocalyptic number.

160640000000 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 160640000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201587179248).

160640000000 is an abundant number, since it is smaller than the sum of its proper divisors (242534358496).

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

160640000000 is an frugal number, since it uses more digits than its factorization.

160640000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 160640000000 its reverse (46061), we get a palindrome (160640046061).

It can be divided in two parts, 160 and 640000000, that multiplied together give a square (102400000000 = 3200002).

The spelling of 160640000000 in words is "one hundred sixty billion, six hundred forty million", and thus it is an aban number.