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641413470006660 = 2235131997870747293
BaseRepresentation
bin1001000111010111001011011…
…0000010001010110110000100
310010010001112021120000012220010
42101311302312002022312010
51133032404241310203120
610152101140312310220
7252050410504205331
oct22165626602126604
93103045246005803
10641413470006660
11176412a1a22770a
125bb322893a2370
13216b90525630a0
14b456812ca7988
154e2498288c7e0
hex2475cb608ad84

641413470006660 has 192 divisors, whose sum is σ = 1935339981748992. Its totient is φ = 157785870219264.

The previous prime is 641413470006599. The next prime is 641413470006737. The reversal of 641413470006660 is 66600074314146.

It is a super-2 number, since 2×6414134700066602 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13562521974 + ... + 13562569266.

It is an arithmetic number, because the mean of its divisors is an integer number (10079895738276).

Almost surely, 2641413470006660 is an apocalyptic number.

641413470006660 is a gapful number since it is divisible by the number (60) 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 641413470006660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967669990874496).

641413470006660 is an abundant number, since it is smaller than the sum of its proper divisors (1293926511742332).

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

641413470006660 is a wasteful number, since it uses less digits than its factorization.

641413470006660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58022 (or 58020 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 641413470006660 in words is "six hundred forty-one trillion, four hundred thirteen billion, four hundred seventy million, six thousand, six hundred sixty".