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66707116 = 22717353397
BaseRepresentation
bin1111111001110…
…1111010101100
311122112001221221
43332131322230
5114034111431
610341433124
71440000250
oct376357254
9148461857
1066707116
1134722053
121a40b7a4
1310a87a88
148c06260
155cca111
hex3f9deac

66707116 has 48 divisors (see below), whose sum is σ = 142019136. Its totient is φ = 26763264.

The previous prime is 66707101. The next prime is 66707171. The reversal of 66707116 is 61170766.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 167830 + ... + 168226.

It is an arithmetic number, because the mean of its divisors is an integer number (2958732).

Almost surely, 266707116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66707116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71009568).

66707116 is an abundant number, since it is smaller than the sum of its proper divisors (75312020).

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

66707116 is a wasteful number, since it uses less digits than its factorization.

66707116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 66707116 is about 8167.4424393442. The cubic root of 66707116 is about 405.5621234635.

The spelling of 66707116 in words is "sixty-six million, seven hundred seven thousand, one hundred sixteen".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 353 397 476 706 794 1412 1588 2471 2779 4942 5558 6001 6749 9884 11116 12002 13498 24004 26996 42007 47243 84014 94486 140141 168028 188972 280282 560564 980987 1961974 2382397 3923948 4764794 9529588 16676779 33353558 66707116