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164156063280 = 243511531137
BaseRepresentation
bin1001100011100001110…
…1101011111000110000
3120200201022121001000120
42120320131223320300
510142142423011110
6203225014050240
714600640341526
oct2307035537060
9520638531016
10164156063280
1163688900000
1227993649980
1312631300c71
147d33890316
15440b78d870
hex263876be30

164156063280 has 480 divisors, whose sum is σ = 582046746624. Its totient is φ = 38230579200.

The previous prime is 164156063251. The next prime is 164156063287. The reversal of 164156063280 is 82360651461.

164156063280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1641560632802 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164156063287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1198219372 + ... + 1198219508.

Almost surely, 2164156063280 is an apocalyptic number.

164156063280 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 164156063280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291023373312).

164156063280 is an abundant number, since it is smaller than the sum of its proper divisors (417890683344).

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

164156063280 is an equidigital number, since it uses as much as digits as its factorization.

164156063280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 164156063280 in words is "one hundred sixty-four billion, one hundred fifty-six million, sixty-three thousand, two hundred eighty".