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80066666008 = 23721321154619
BaseRepresentation
bin100101010010001011…
…0000101111000011000
321122122222120001120101
41022210112011320120
52302434031303013
6100440534305144
75533061301100
oct1124426057030
9248588501511
1080066666008
1130a5760025a
12136261b81b4
13771cba6c64
143c37970200
15213928b8dd
hex12a4585e18

80066666008 has 48 divisors (see below), whose sum is σ = 174768532200. Its totient is φ = 34288087680.

The previous prime is 80066665997. The next prime is 80066666023.

80066666008 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440523 + ... + 595141.

Almost surely, 280066666008 is an apocalyptic number.

It is an amenable number.

80066666008 is an abundant number, since it is smaller than the sum of its proper divisors (94701866192).

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

80066666008 is a wasteful number, since it uses less digits than its factorization.

80066666008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155960 (or 155949 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 80066666008 in words is "eighty billion, sixty-six million, six hundred sixty-six thousand, eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 1321 2642 5284 9247 10568 18494 36988 64729 73976 129458 154619 258916 309238 517832 618476 1082333 1236952 2164666 4329332 7576331 8658664 15152662 30305324 60610648 204251699 408503398 817006796 1429761893 1634013592 2859523786 5719047572 10008333251 11438095144 20016666502 40033333004 80066666008