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66102628032 = 2632716394501
BaseRepresentation
bin111101100100000001…
…100000111011000000
320022121210202102121200
4331210001200323000
52040334233044112
650211144421200
74530041032110
oct754401407300
9208553672550
1066102628032
1126041234901
1210989777800
136305b799ac
1432b1179040
151abd3adcdc
hexf64060ec0

66102628032 has 84 divisors (see below), whose sum is σ = 216538582416. Its totient is φ = 18886464000.

The previous prime is 66102628001. The next prime is 66102628157. The reversal of 66102628032 is 23082620166.

66102628032 is a `hidden beast` number, since 6 + 610 + 2 + 6 + 2 + 8 + 0 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 8193219 + ... + 8201282.

Almost surely, 266102628032 is an apocalyptic number.

It is an amenable number.

66102628032 is an abundant number, since it is smaller than the sum of its proper divisors (150435954384).

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

66102628032 is a wasteful number, since it uses less digits than its factorization.

66102628032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16394526 (or 16394513 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 66102628032 in words is "sixty-six billion, one hundred two million, six hundred twenty-eight thousand, thirty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 144 168 192 224 252 288 336 448 504 576 672 1008 1344 2016 4032 16394501 32789002 49183503 65578004 98367006 114761507 131156008 147550509 196734012 229523014 262312016 295101018 344284521 393468024 459046028 524624032 590202036 688569042 786936048 918092056 1032853563 1049248064 1180404072 1377138084 1573872096 1836184112 2065707126 2360808144 2754276168 3147744192 3672368224 4131414252 4721616288 5508552336 7344736448 8262828504 9443232576 11017104672 16525657008 22034209344 33051314016 66102628032