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66325314471 = 31313712413497
BaseRepresentation
bin111101110001010010…
…111111101110100111
320100012022210001222120
4331301102333232213
52041313240030341
650245221401023
74535413604523
oct756122775647
9210168701876
1066325314471
1126145a02489
1210a30269173
136340048110
1432d2984d83
151ad2bea066
hexf714bfba7

66325314471 has 16 divisors (see below), whose sum is σ = 95931512544. Its totient is φ = 40517650944.

The previous prime is 66325314467. The next prime is 66325314491. The reversal of 66325314471 is 17441352366.

It is not a de Polignac number, because 66325314471 - 22 = 66325314467 is a prime.

It is a super-3 number, since 3×663253144713 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66325314421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6201406 + ... + 6212091.

It is an arithmetic number, because the mean of its divisors is an integer number (5995719534).

Almost surely, 266325314471 is an apocalyptic number.

66325314471 is a deficient number, since it is larger than the sum of its proper divisors (29606198073).

66325314471 is a wasteful number, since it uses less digits than its factorization.

66325314471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413650.

The product of its digits is 362880, while the sum is 42.

The spelling of 66325314471 in words is "sixty-six billion, three hundred twenty-five million, three hundred fourteen thousand, four hundred seventy-one".

Divisors: 1 3 13 39 137 411 1781 5343 12413497 37240491 161375461 484126383 1700649089 5101947267 22108438157 66325314471