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66675672206 = 21113283823787
BaseRepresentation
bin111110000110001011…
…100000010010001110
320101002202001002102222
4332012023200102032
52043022433002311
650344055015342
74550166601613
oct760613402216
9211082032388
1066675672206
1126305751430
1210b0966a552
1363977c80a0
14332730650a
151b03854adb
hexf862e048e

66675672206 has 32 divisors (see below), whose sum is σ = 117913719168. Its totient is φ = 27876918240.

The previous prime is 66675672179. The next prime is 66675672223. The reversal of 66675672206 is 60227657666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330956 + ... + 492831.

It is an arithmetic number, because the mean of its divisors is an integer number (3684803724).

Almost surely, 266675672206 is an apocalyptic number.

66675672206 is a deficient number, since it is larger than the sum of its proper divisors (51238046962).

66675672206 is a wasteful number, since it uses less digits than its factorization.

66675672206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824096.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 66675672206 in words is "sixty-six billion, six hundred seventy-five million, six hundred seventy-two thousand, two hundred six".

Divisors: 1 2 11 13 22 26 143 283 286 566 3113 3679 6226 7358 40469 80938 823787 1647574 9061657 10709231 18123314 21418462 117801541 233131721 235603082 466263442 2564448931 3030712373 5128897862 6061424746 33337836103 66675672206