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66872275118035 = 5197968291304783
BaseRepresentation
bin11110011010001111010100…
…01101000010011111010011
322202202221000211110012221121
433031013222031002133103
532231113404412234120
6354120411000303111
720041235213551522
oct1715075215023723
9282687024405847
1066872275118035
111a342410a47162
127600365771a97
132b4104a774b8a
1412728c76d64b9
157ae77c0475aa
hex3cd1ea3427d3

66872275118035 has 32 divisors (see below), whose sum is σ = 85552077312000. Its totient is φ = 50033233201536.

The previous prime is 66872275118023. The next prime is 66872275118107. The reversal of 66872275118035 is 53081157227866.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 66872275118035 - 239 = 66322519304147 is a prime.

It is a super-2 number, since 2×668722751180352 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50599254 + ... + 51904036.

It is an arithmetic number, because the mean of its divisors is an integer number (2673502416000).

Almost surely, 266872275118035 is an apocalyptic number.

66872275118035 is a deficient number, since it is larger than the sum of its proper divisors (18679802193965).

66872275118035 is a wasteful number, since it uses less digits than its factorization.

66872275118035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311715.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 66872275118035 in words is "sixty-six trillion, eight hundred seventy-two billion, two hundred seventy-five million, one hundred eighteen thousand, thirty-five".

Divisors: 1 5 19 79 95 395 1501 6829 7505 34145 129751 539491 648755 1304783 2697455 6523915 10250329 24790877 51251645 103077857 123954385 515389285 1958479283 8910363107 9792396415 44551815535 169296899033 703918685453 846484495165 3519593427265 13374455023607 66872275118035