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66285075061063 = 3131871523721613
BaseRepresentation
bin11110001001001001100100…
…10110100101100101000111
322200200210100211221122100101
433010210302112211211013
532142003313203423223
6352550535413224531
716650636644455615
oct1704446226454507
9280623324848311
1066285075061063
111a136384907281
1275265a9632147
132aca86a912171
1412523013c26b5
1579e360cb04ad
hex3c49325a5947

66285075061063 has 16 divisors (see below), whose sum is σ = 66548172502656. Its totient is φ = 66022322446080.

The previous prime is 66285075061027. The next prime is 66285075061067. The reversal of 66285075061063 is 36016057058266.

It is a cyclic number.

It is not a de Polignac number, because 66285075061063 - 29 = 66285075060551 is a prime.

It is a super-2 number, since 2×662850750610632 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66285075060995 and 66285075061013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66285075061067) 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, 3066896845 + ... + 3066918457.

It is an arithmetic number, because the mean of its divisors is an integer number (4159260781416).

Almost surely, 266285075061063 is an apocalyptic number.

66285075061063 is a deficient number, since it is larger than the sum of its proper divisors (263097441593).

66285075061063 is a wasteful number, since it uses less digits than its factorization.

66285075061063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29034.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 66285075061063 in words is "sixty-six trillion, two hundred eighty-five billion, seventy-five million, sixty-one thousand, sixty-three".

Divisors: 1 313 1871 5237 21613 585623 1639181 6764869 9798427 40437923 113187281 3066907651 12657069899 35427618953 211773402751 66285075061063