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164530241664 = 2732318628877
BaseRepresentation
bin1001100100111011000…
…1000100000010000000
3120201200101200021021020
42121032301010002000
510143424220213124
6203330102025440
714613132656565
oct2311661040200
9521611607236
10164530241664
1163860039838
1227a78a18280
13126909a13a9
147d6b45286c
15442e551379
hex264ec44080

164530241664 has 64 divisors (see below), whose sum is σ = 456034933440. Its totient is φ = 52458914816.

The previous prime is 164530241651. The next prime is 164530241669. The reversal of 164530241664 is 466142035461.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (164530241669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9305607 + ... + 9323270.

It is an arithmetic number, because the mean of its divisors is an integer number (7125545835).

Almost surely, 2164530241664 is an apocalyptic number.

It is an amenable number.

164530241664 is an abundant number, since it is smaller than the sum of its proper divisors (291504691776).

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

164530241664 is a wasteful number, since it uses less digits than its factorization.

164530241664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18628917 (or 18628905 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 164530241664 in words is "one hundred sixty-four billion, five hundred thirty million, two hundred forty-one thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 128 138 184 192 276 368 384 552 736 1104 1472 2208 2944 4416 8832 18628877 37257754 55886631 74515508 111773262 149031016 223546524 298062032 428464171 447093048 596124064 856928342 894186096 1192248128 1285392513 1713856684 1788372192 2384496256 2570785026 3427713368 3576744384 5141570052 6855426736 7153488768 10283140104 13710853472 20566280208 27421706944 41132560416 54843413888 82265120832 164530241664