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166068085 = 5311071407
BaseRepresentation
bin10011110010111…
…11111101110101
3102120111010120211
421321133331311
5320003134320
624251225421
74054361341
oct1171377565
9376433524
10166068085
1185817457
1247748271
1328536751
14180ac621
15e8a555a
hex9e5ff75

166068085 has 8 divisors (see below), whose sum is σ = 205710336. Its totient is φ = 128568720.

The previous prime is 166068083. The next prime is 166068103. The reversal of 166068085 is 580860661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166068085 - 21 = 166068083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166068083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535549 + ... + 535858.

It is an arithmetic number, because the mean of its divisors is an integer number (25713792).

Almost surely, 2166068085 is an apocalyptic number.

It is an amenable number.

166068085 is a deficient number, since it is larger than the sum of its proper divisors (39642251).

166068085 is a wasteful number, since it uses less digits than its factorization.

166068085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071443.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 166068085 is about 12886.7406662818. The cubic root of 166068085 is about 549.6615934793.

The spelling of 166068085 in words is "one hundred sixty-six million, sixty-eight thousand, eighty-five".

Divisors: 1 5 31 155 1071407 5357035 33213617 166068085