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164205165464 = 23166312342541
BaseRepresentation
bin1001100011101101100…
…0111111101110011000
3120200211201222200112222
42120323120333232120
510142243010243324
6203233530323212
714602104606554
oct2307330775630
9520751880488
10164205165464
116370359821a
12279a7b89508
131263b533802
147d3a1d2864
154410c3c55e
hex263b63fb98

164205165464 has 16 divisors (see below), whose sum is σ = 308069848320. Its totient is φ = 82053205920.

The previous prime is 164205165461. The next prime is 164205165469. The reversal of 164205165464 is 464561502461.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164205165461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6157967 + ... + 6184574.

It is an arithmetic number, because the mean of its divisors is an integer number (19254365520).

Almost surely, 2164205165464 is an apocalyptic number.

It is an amenable number.

164205165464 is a deficient number, since it is larger than the sum of its proper divisors (143864682856).

164205165464 is a wasteful number, since it uses less digits than its factorization.

164205165464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12344210 (or 12344206 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 164205165464 in words is "one hundred sixty-four billion, two hundred five million, one hundred sixty-five thousand, four hundred sixty-four".

Divisors: 1 2 4 8 1663 3326 6652 13304 12342541 24685082 49370164 98740328 20525645683 41051291366 82102582732 164205165464