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206664163500 = 223531710974353
BaseRepresentation
bin1100000001111000100…
…1001110000010101100
3201202102210002021012210
43000132021032002230
511341222011213000
6234535030130420
720634221256054
oct3003611160254
9652383067183
10206664163500
117a711594943
12340774b0a10
1316646b8a8a2
14a0071ba564
155598551350
hex301e24e0ac

206664163500 has 192 divisors, whose sum is σ = 643060978560. Its totient is φ = 51392102400.

The previous prime is 206664163463. The next prime is 206664163501. The reversal of 206664163500 is 5361466602.

It is not an unprimeable number, because it can be changed into a prime (206664163501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2742324 + ... + 2816676.

It is an arithmetic number, because the mean of its divisors is an integer number (3349275930).

Almost surely, 2206664163500 is an apocalyptic number.

206664163500 is a gapful number since it is divisible by the number (20) 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 206664163500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321530489280).

206664163500 is an abundant number, since it is smaller than the sum of its proper divisors (436396815060).

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

206664163500 is a wasteful number, since it uses less digits than its factorization.

206664163500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74501 (or 74489 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 206664163500 in words is "two hundred six billion, six hundred sixty-four million, one hundred sixty-three thousand, five hundred".