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66533349484 = 22719131954677
BaseRepresentation
bin111101111101101100…
…100101100001101100
320100201211020100101001
4331331230211201230
52042230014140414
650322012330044
74543521065560
oct757554454154
9210654210331
1066533349484
1126242383248
1210a89a73924
136374186764
1433124596a0
151ae60e0074
hexf7db2586c

66533349484 has 48 divisors (see below), whose sum is σ = 141139595520. Its totient is φ = 26807302080.

The previous prime is 66533349473. The next prime is 66533349527. The reversal of 66533349484 is 48494333566.

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, 407647 + ... + 547030.

It is an arithmetic number, because the mean of its divisors is an integer number (2940408240).

Almost surely, 266533349484 is an apocalyptic number.

It is an amenable number.

66533349484 is an abundant number, since it is smaller than the sum of its proper divisors (74606246036).

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

66533349484 is a wasteful number, since it uses less digits than its factorization.

66533349484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954838 (or 954836 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 55.

The spelling of 66533349484 in words is "sixty-six billion, five hundred thirty-three million, three hundred forty-nine thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 19 28 38 76 131 133 262 266 524 532 917 1834 2489 3668 4978 9956 17423 34846 69692 954677 1909354 3818708 6682739 13365478 18138863 26730956 36277726 72555452 125062687 126972041 250125374 253944082 500250748 507888164 875438809 1750877618 2376191053 3501755236 4752382106 9504764212 16633337371 33266674742 66533349484