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164083855537 = 7241283728789
BaseRepresentation
bin1001100011010000101…
…0001111000010110001
3120200112021201111121201
42120310022033002301
510142020431334122
6203213514251201
714566102521400
oct2306412170261
9520467644551
10164083855537
1163651071288
1227973426b01
131261c36b5a4
147d28055637
154405278a27
hex263428f0b1

164083855537 has 24 divisors (see below), whose sum is σ = 195604211880. Its totient is φ = 137159850240.

The previous prime is 164083855513. The next prime is 164083855553. The reversal of 164083855537 is 735558380461.

It can be written as a sum of positive squares in 4 ways, for example, as 110691441 + 163973164096 = 10521^2 + 404936^2 .

It is not a de Polignac number, because 164083855537 - 211 = 164083853489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164083855567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5685139 + ... + 5713927.

It is an arithmetic number, because the mean of its divisors is an integer number (8150175495).

Almost surely, 2164083855537 is an apocalyptic number.

It is an amenable number.

164083855537 is a deficient number, since it is larger than the sum of its proper divisors (31520356343).

164083855537 is a wasteful number, since it uses less digits than its factorization.

164083855537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31681 (or 31674 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 164083855537 in words is "one hundred sixty-four billion, eighty-three million, eight hundred fifty-five thousand, five hundred thirty-seven".

Divisors: 1 7 41 49 287 2009 2837 19859 28789 116317 139013 201523 814219 1180349 1410661 5699533 8262443 57837101 81674393 571720751 3348650113 4002045257 23440550791 164083855537