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80066553504 = 2537217398387
BaseRepresentation
bin100101010010001010…
…1101010011010100000
321122122222100100020120
41022210111222122200
52302434014203004
6100440532040240
75533060322100
oct1124425523240
9248588310216
1080066553504
1130a57533783
1213626163080
13771cb679a2
143c37941200
1521392683d9
hex12a456a6a0

80066553504 has 144 divisors (see below), whose sum is σ = 245904670368. Its totient is φ = 22743694848.

The previous prime is 80066553499. The next prime is 80066553509. The reversal of 80066553504 is 40535566008.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80066553499) and next prime (80066553509).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (80066553509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764599 + ... + 862985.

It is an arithmetic number, because the mean of its divisors is an integer number (1707671322).

Almost surely, 280066553504 is an apocalyptic number.

80066553504 is a gapful number since it is divisible by the number (84) 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 80066553504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122952335184).

80066553504 is an abundant number, since it is smaller than the sum of its proper divisors (165838116864).

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

80066553504 is a wasteful number, since it uses less digits than its factorization.

80066553504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98587 (or 98572 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 80066553504 in words is "eighty billion, sixty-six million, five hundred fifty-three thousand, five hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 84 96 98 112 147 168 173 196 224 294 336 346 392 519 588 672 692 784 1038 1176 1211 1384 1568 2076 2352 2422 2768 3633 4152 4704 4844 5536 7266 8304 8477 9688 14532 16608 16954 19376 25431 29064 33908 38752 50862 58128 67816 98387 101724 116256 135632 196774 203448 271264 295161 393548 406896 590322 688709 787096 813792 1180644 1377418 1574192 2066127 2361288 2754836 3148384 4132254 4722576 4820963 5509672 8264508 9445152 9641926 11019344 14462889 16529016 17020951 19283852 22038688 28925778 33058032 34041902 38567704 51062853 57851556 66116064 68083804 77135408 102125706 115703112 119146657 136167608 154270816 204251412 231406224 238293314 272335216 357439971 408502824 462812448 476586628 544670432 714879942 817005648 834026599 953173256 1429759884 1634011296 1668053198 1906346512 2502079797 2859519768 3336106396 3812693024 5004159594 5719039536 6672212792 10008319188 11438079072 13344425584 20016638376 26688851168 40033276752 80066553504