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164171711372 = 221957116372311
BaseRepresentation
bin1001100011100101100…
…1011000001110001100
3120200202102001001011112
42120321121120032030
510142210424230442
6203230333311152
714601220344014
oct2307131301614
9520672031145
10164171711372
1163696718709
12279989354b8
131263461c5a6
147d359a4c44
15440cd30082
hex263965838c

164171711372 has 48 divisors (see below), whose sum is σ = 303267444480. Its totient is φ = 77548363200.

The previous prime is 164171711357. The next prime is 164171711387. The reversal of 164171711372 is 273117171461.

It is an interprime number because it is at equal distance from previous prime (164171711357) and next prime (164171711387).

It is a super-2 number, since 2×1641717113722 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71038097 + ... + 71040407.

It is an arithmetic number, because the mean of its divisors is an integer number (6318071760).

Almost surely, 2164171711372 is an apocalyptic number.

It is an amenable number.

164171711372 is a deficient number, since it is larger than the sum of its proper divisors (139095733108).

164171711372 is a wasteful number, since it uses less digits than its factorization.

164171711372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4542 (or 4540 counting only the distinct ones).

The product of its digits is 49392, while the sum is 41.

The spelling of 164171711372 in words is "one hundred sixty-four billion, one hundred seventy-one million, seven hundred eleven thousand, three hundred seventy-two".

Divisors: 1 2 4 19 38 76 571 1142 1637 2284 2311 3274 4622 6548 9244 10849 21698 31103 43396 43909 62206 87818 124412 175636 934727 1319581 1869454 2639162 3738908 3783107 5278324 7566214 15132428 17759813 25072039 35519626 50144078 71039252 71879033 100288156 143758066 287516132 2160154097 4320308194 8640616388 41042927843 82085855686 164171711372